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🧊Lifestyle

Cold Water Plunge (Ice Bath)

2-5 minute immersion in near-freezing water

51

Fun

24

Risk

1.70×

FRR

64

Worth It

Great DealMathematically sound fun

Fun Breakdown

Subjective Pleasure2 / 5
Flow State5 / 10
Hedonic Purity8 / 10
Dopamine6 / 10

Risk Breakdown

Micromorts0.5 μmt
Microlives0
Life Disruption0 / 10
Legal Risk0 / 10

Algorithm Steps

Step 1
Health Burden

H_eq = 0.5 + 1.25 × 0 = 0.5

HealthScore = min(100, 20 × log₁₀(1 + 100 × 0.5)) = 34.15

Step 2
Risk Score

Risk = 0.70 × 34.15 + 0.20 × (0 × 10) + 0.10 × (0 × 10) = 23.91

Step 3
Fun Score

FlowAdj = ((5 − 1) / 9) × 100 = 44.44

Fun = 0.45 × (2 × 20) + 0.25 × 44.44 + 0.20 × (8 × 10) + 0.10 × (6 × 10) = 51.11

Step 4
Outputs

WorthIt = clamp(50 + 0.5 × (51.11 − 23.91), 0, 100) = 63.6

FRR = (51.11 + 15) / (23.91 + 15) = 1.7

Reference Literature