Writing for Survival, Reading the Signs
Christopher Rose
Rutgers University, WINLAB
Communication Theory Workshop June 24, 2013
Writing for Survival, Reading the Signs Christopher Rose Rutgers - - PowerPoint PPT Presentation
Writing for Survival, Reading the Signs Christopher Rose Rutgers University, WINLAB Communication Theory Workshop June 24, 2013 1 Physics Envy PHYSICIST Rutgers WINLAB CTW13 C. Rose 2 Physics Envy Communication Engineer/Theorist
Christopher Rose
Rutgers University, WINLAB
Communication Theory Workshop June 24, 2013
1
Physics Envy
PHYSICIST
Rutgers WINLAB CTW’13
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Physics Envy
Communication Engineer/Theorist
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Ego Emerges
But EVERYTHING Communicates!
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Ego Emerges
But EVERYTHING Communicates! Particles Atoms Cells Organisms People Ecologies Economies Universe
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Ego Emerges
But EVERYTHING Communicates! Particles Atoms Cells Organisms People Ecologies Economies Universe Comm Theory is central to BIG questions! AND ...
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Ego Emerges
But EVERYTHING Communicates! Particles Atoms Cells Organisms People Ecologies Economies Universe Comm Theory is central to BIG questions! AND ...
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Society Batters Ego
Popular Culture
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Family/Friends Batter Ego
Tricia Rose
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Family/Friends Batter Ego
Stephanie Bell-Rose
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Family/Friends Batter Ego
National Medal of Science 2011 (awarded 2013)
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Not to Be Outdone
Down the Rabbit Hole
– Communication Theory Zeitgeist
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Write or Radiate?
A Little Analytic Rigor
R
2
π D apertures
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Write or Radiate?
A Little Analytic Rigor
R
2
π D apertures D r
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A Little Analytic Rigor
R
2
π D apertures D r
τ =D/c+T T
radiated message
D/c
Mass Transport Radiation
mass delivered
Rutgers WINLAB CTW’13
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Write or Radiate?
Radiation Energy Requirements
N0W + 1
CTW’13
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Write or Radiate?
Radiation Energy Requirements
N0W + 1
AG 4πD2 Rutgers WINLAB CTW’13
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Write or Radiate?
Radiation Energy Requirements
N0W + 1
AG 4πD2
AG T W B
B T W − 1
CTW’13
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Write or Radiate?
Radiation Energy Requirements
N0W + 1
AG 4πD2
AG T W B
B T W − 1
AG
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Write or Radiate?
Writing Energy Requirements (ROCKET SCIENCE!)
E∗ = min
trajectory max
t
E(t) Jensen’s Inequality Leads To
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Writing Energy Requirements (ROCKET SCIENCE!)
E∗ = min
trajectory max
t
E(t) Jensen’s Inequality Leads To E∗ = 1 2m¯ v2
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Write or Radiate?
Inscribed Matter Energy Requirements
Message size B bits, mass information density ˜ ρ bits/kg
2 B ˜ ρ ¯
2 B ˜ ρ
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Write or Radiate?
Inscribed Matter Energy Requirements
Message size B bits, mass information density ˜ ρ bits/kg
2 B ˜ ρ ¯
2 B ˜ ρ
10 10 10 10 100 1
10 8 6 4
solar escape earth escape milky way escape jetliner brisk walk light speed
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Write or Radiate?
Inscribed Matter Energy Requirements
Message size B bits, mass information density ˜ ρ bits/kg
2 B ˜ ρ ¯
2 B ˜ ρ
10 10 10 10 100 1
10 8 6 4
solar escape earth escape milky way escape jetliner brisk walk light speed
Artillery: adds a factor of 2 to energy Escape: small penalty if ¯ v > 2 × escape velocity
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Radiation to Transport Energy Ratio
Ew
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Radiation to Transport Energy Ratio
Ew Receiver Noise ≡ N0 Joules/Hz Mass Information Density ≡ ˜ ρ bits/kg Velocity Ratio ≡ δ = c
v
Normalized Aperture ≡ A = 2R
λ
Normalized Distance ≡ D = D
2R
⇒ Ω ≥
ρN0 c2 8 π2
A
(2 ln 2)δ2 ⇐
Equal Receiver/Transmitter Apertures Rutgers WINLAB CTW’13
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Write or Radiate?
Empirical Mass Information Densities I
Voyager Spacecraft: 106 bits/kg
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Empirical Mass Information Densities II
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Write or Radiate?
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Write or Radiate?
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– ETA nearest star: ≈ 100 kilo-years – Rocket Launch: distance up ×9. – Use 3 DVDs (instead of gold disc): distance down ×10 – Use 1 gram of “RNA”: distance down ×106
(≈ 1/4000 distance to nearest star)
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General Interstellar
(˜ ρ = 1022, δ = 103, Temperature 3K) Rutgers WINLAB CTW’13
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General Interstellar
(˜ ρ = 1022, δ = 103, Temperature 3K)
102 104 106 108 1010 1012 1014 1016 1018 1020 1022
D (normalized distance)
100 104 108 1012 1016 1020
A (normalized aperture)
Arecibo@10GHz 10m Optical (500nm) 1m Xray (0.1nm) Earth@10GHz
Ω
1
10
10
6
10
12
10
18
10
24
10
30
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Write or Radiate?
General Interstellar
(˜ ρ = 1022, δ = 103, Temperature 3K)
102 104 106 108 1010 1012 1014 1016 1018 1020 1022
D (normalized distance)
100 104 108 1012 1016 1020
A (normalized aperture)
Arecibo@10GHz 10m Optical (500nm) 1m Xray (0.1nm) Earth@10GHz
Ω
1
10
10
6
10
12
10
18
10
24
10
30
Matter Radiation: Shelve a 5 lb sugar bag 24 Megaton blast
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Write or Radiate?
Communications Theory Has Spoken
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Sluggish Data vs. ADSL
Annals of Improbable Research 11(4), 2005 Rutgers WINLAB CTW’13
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Write or Radiate?
hey, Hey HEY!!!!! What About ... ?
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hey, Hey HEY!!!!! What About ... ?
– Impermanence and Repetition
– Broadcast – Preservation – Inscription Energy – Deceleration @Target – Navigation – Advertisement
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Write or Radiate?
Is Radiation Better for Broadcast?
ρ = 1022, δ =
c v = 103) spherical galaxy, omnidirectional
transmission, Arecibo receiver
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Write or Radiate?
Is Radiation Better for Broadcast?
ρ = 1022, δ =
c v = 103) spherical galaxy, omnidirectional
transmission, Arecibo receiver – D = 104 LY: 1.17 × 1011 stars (but Ω > 1025)
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Write or Radiate?
Is Radiation Better for Broadcast?
ρ = 1022, δ =
c v = 103) spherical galaxy, omnidirectional
transmission, Arecibo receiver – D = 104 LY: 1.17 × 1011 stars (but Ω > 1025) – D = 106 LY: 1.17 × 1017 stars (but Ω > 1029)
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Write or Radiate?
Is Radiation Better for Broadcast?
ρ = 1022, δ =
c v = 103) spherical galaxy, omnidirectional
transmission, Arecibo receiver – D = 104 LY: 1.17 × 1011 stars (but Ω > 1025) – D = 106 LY: 1.17 × 1017 stars (but Ω > 1029) – D = 1010 LY: 1.17 × 1029 stars (but Ω > 1037)
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Write or Radiate?
Is Radiation Better for Broadcast?
ρ = 1022, δ =
c v = 103) spherical galaxy, omnidirectional
transmission, Arecibo receiver – D = 104 LY: 1.17 × 1011 stars (but Ω > 1025) – D = 106 LY: 1.17 × 1017 stars (but Ω > 1029) – D = 1010 LY: 1.17 × 1029 stars (but Ω > 1037)
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Write or Radiate?
Semaphored and Summarized In ...
Nature 431, pp.47–49, September 2, 2004 (C. Rose & G. Wright) Web Site: http://www.winlab.rutgers.edu/∼crose/cgi-bin/cosmicP .html
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Nature Perqs
Really Chill Perqs!
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Nature Perqs
Really Chill Perqs!
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Nature Perqs
Not So Chill Perqs
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Nature Perqs
Not So Chill Perqs
Counsel: Dr. Rose, what term of address would you prefer? Rose: “Chris” is fine. Counsel: These are formal proceedings, so I’ll use “Dr. Rose,” okay? Rose: OK. Counsel: Are you a professor of E&CE at Rutgers University? Rose: Yes. Counsel: Did you receive all your degrees from M.I.T.? Rose: Yes. Counsel: Are you an expert in wireless communications? Rose: For this trial’s subject matter, yes.
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Nature Perqs
Not So Chill Perqs
Counsel: Dr. Rose, what term of address would you prefer? Rose: “Chris” is fine. Counsel: These are formal proceedings, so I’ll use “Dr. Rose,” okay? Rose: OK. Counsel: Are you a professor of E&CE at Rutgers University? Rose: Yes. Counsel: Did you receive all your degrees from M.I.T.? Rose: Yes. Counsel: Are you an expert in wireless communications? Rose: For this trial’s subject matter, yes. Counsel: Dr. Rose, do you talk to space aliens? Rose: (WTH?!?!?!?!)....
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Big Question Question
More Reasonable Questions
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Big Question Question
More Reasonable Questions
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Big Question Question
More Reasonable Questions
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Howdy Neighbor!
Alien Psychology 101
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Howdy Neighbor!
Alien Psychology 101
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Howdy Neighbor!
Hello Exoplanet-ling! IF U CN C THS, join the party! Turn left at Alpha Centauri ...
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Howdy Neighbor!
Let Us Help You!
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Howdy Neighbor!
Hello Universe!
Bring technology!
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Howdy Neighbor!
Hello Universe!
Bring technology!
(but, please don’t eat us)
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Survival
Universal (well, galactic) Truth
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Survival
Universal (well, galactic) Truth
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Survival
OOPS!
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Survival
OUCH!
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Survival
RAPTURE!
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Writing to Survive
Interstellar “Evolution”
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Writing to Survive
Interstellar “Evolution”
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Writing to Survive
Interstellar “Evolution”
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Writing to Survive
Interstellar “Evolution”
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Incursion HOWTO
Seeded Comet?
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Incursion HOWTO
Micro Ark?
Are we THERE YET!?!?
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Incursion HOWTO
Sorry, (your) Game Over!
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Detection
Detection Pipe Dream? (50+ Years of SETI)
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Detection
Detection Pipe Dream? (50+ Years of SETI)
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Detection
Incursion or Evolution?
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Detection
Incursion or Evolution?
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Detection
Killjoy Biologists
–Gerald Joyce
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Detection
Killjoy Biologists
–Gerald Joyce
–Biological Dogma
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Detection
Can We Detect Ancient Biological Incursions?
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Detection
Can We Detect Ancient Biological Incursions?
I might never know!
(Plenary talk sales final – Absolutely No Refunds!)
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Detection
Can We Detect Future Biological Incursions?
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Detection
Can We Detect Future Biological Incursions?
ET!
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Detection
Three Fundamental Questions
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Detection
Three Fundamental Questions
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Detection
Three Fundamental Questions
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Detection
Three Fundamental Questions
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Detection
(A): Package Density: the fake equation
(After Drake – Fermilicious and equally fake)
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Detection
(A): Package Density: the fake equation
(After Drake – Fermilicious and equally fake) Np : number of parcels floating around P : number of planets fe: fraction potential life-supporting planets fℓ: fraction that come to life fi : fraction with“intelligent” life fc : fraction with loquacious intelligent life λp: parcels/year τp: years parcel survival
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Detection
(A): Package Density: the fake equation
(After Drake – Fermilicious and equally fake) Np : number of parcels floating around P : number of planets fe: fraction potential life-supporting planets fℓ: fraction that come to life fi : fraction with“intelligent” life fc : fraction with loquacious intelligent life λp: parcels/year τp: years parcel survival
P ≈ 1011 (John Johnson, CalTech, now Harvard) τp = 108 (“geologic” design, galaxy-spanning @ c/1000) λpfefℓfifc ≈ 1 (loquacity balancing pessimism)
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Detection
(A): Package Density: the fake equation
(After Drake – Fermilicious and equally fake) Np : number of parcels floating around P : number of planets fe: fraction potential life-supporting planets fℓ: fraction that come to life fi : fraction with“intelligent” life fc : fraction with loquacious intelligent life λp: parcels/year τp: years parcel survival
P ≈ 1011 (John Johnson, CalTech, now Harvard) τp = 108 (“geologic” design, galaxy-spanning @ c/1000) λpfefℓfifc ≈ 1 (loquacity balancing pessimism)
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Detection
(B): Biome Survey/Monitor
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Detection
(B): Biome Survey/Monitor
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Detection
(B): Biome Survey/Monitor
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Detection
(B): Biome Survey/Monitor
Search Area: (1m scoop): 6.4 × 106km2/year Earth surface: 5.1 × 108 km2
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Detection
(B): Biome Survey/Monitor
Search Area: (1m scoop): 6.4 × 106km2/year Earth surface: 5.1 × 108 km2
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Detection
(C): Quantitative Evolution
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Detection
(C): Quantitative Evolution
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Detection
(C): Quantitative Evolution
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Detection
(C): Quantitative Evolution
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Detection
Is This Communication Theory?
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Detection
Is This Communication Theory?
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Detection
Is This Communication Theory?
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Detection
Is This Communication Theory?
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Detection
Is This Communication Theory?
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Comm PWNage!
Communication Theorists
Rutgers WINLAB CTW’13