Hashrate and price move together over long horizons and diverge over short ones. The lag between them is not noise; it reflects how long it takes to turn a decision into operating machines.
Revenue per unit of work sets the incentive
A miner earns a share of block rewards proportional to its share of total network hashrate, valued at the market price.
When the price rises and difficulty has not yet adjusted, revenue per machine rises immediately and margins expand for everyone already running.
That expansion is the signal to deploy more, and it is felt the moment the price moves rather than after any delay.
Deployment is a physical process
Acting on the signal requires ordering machines with lead times, securing a site with sufficient power, and installing cooling and electrical infrastructure.
Power contracts and grid interconnection are often the slowest step, and neither can be accelerated by paying more.
So hashrate arrives months after the conditions that justified it, frequently into a market that has already changed.
Difficulty adjustment removes the advantage
As new machines come online the network raises difficulty to keep block intervals near target, which reduces revenue per machine back toward the previous level.
The extra profitability that attracted the investment is competed away by the investment itself, and the equilibrium is reached again at higher total hashrate.
Miners who deployed early captured the margin, and those who deployed late arrive after it has gone.
Shutdown is faster than startup
The downward response is much quicker, because switching off a machine takes seconds and requires no procurement at all.
When the price falls, the least efficient machines and highest-cost sites stop first, and hashrate can drop sharply within days.
This asymmetry is why hashrate charts show gradual climbs and abrupt falls, a shape that follows directly from the difference between building and switching off.
Older hardware sets the marginal cost
Machines that are several generations old survive only where power is cheapest, and they are the first to become uneconomic when revenue falls.
Their existence gives the network a cushion of capacity that appears during good conditions and vanishes during poor ones.
Because that fleet turns over slowly, the relationship between price and hashrate is best read across cycles rather than within any single move.