Mechanism
Shivering Thermogenesis
TL;DR
PayPal demonstrated shivering thermogenesis during dot-com crash - cutting all products except payments, focusing 200 employees with laser precision.
Shivering thermogenesis generates heat through involuntary muscle contractions at 10-20 Hz, producing 5× resting metabolic rate with 100% efficiency (all muscle work becomes heat). Limitation: exhausting, depleting glycogen in 2-4 hours.
Business Application of Shivering Thermogenesis
PayPal demonstrated shivering thermogenesis during dot-com crash - cutting all products except payments, focusing 200 employees with laser precision. Intense but unsustainable; emerged dominant while competitors froze.