Our Finetuned Universe
Initial Entropy
Moderate Order
Expansion Rate (Redshift)
Moderate Expansion (Redshift)
Density Fluctuations
Quantum Ripples
Initial Entropy
Order vs Chaos
Moderate Order
Low0.5-1.5 S/k (optimal)1.00 S/kHigh
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How organized was the universe at the beginning?
Initial Entropy (Order vs Chaos)
How organized was the universe at the beginning? The fundamental measure of cosmic order vs chaos.
Perfect Order0.5-1.5 S/k (optimal)1.0 S/kMaximum Chaos
Expansion Rate (Hubble Constant)
How fast the universe expands after the Big Bang
Too Slow50-90 km/s/Mpc (optimal)50 km/s/MpcToo Fast
Density Fluctuations
Quantum ripples that seed all future structures
Perfectly Smooth10⁻⁵-10⁻⁴ δρ/ρ (optimal)1.0e-5 δρ/ρHighly Chaotic
Dark Energy Strength
How strong is the force pushing the universe apart?
Too Weak0.8-1.2 Λ (optimal)1.00 ΛToo Strong
Universe Shape
How much matter determines the geometry of space
FLAT
Ω = 1.000
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Too Little0.99-1.01 Ω (optimal)1.000 ΩToo Much
Temperature Uniformity
How uniform is the cosmic background temperature?
CMB Temp
2.725000 K
Δ0.00mK
Slight Variations
Very Uneven2.725±0.00005 K (optimal)2.725000 KPerfect