The whole point of proof of work is that it is proof that someone has spent the value in electricity validating a block.
As the price of bitcoin rises, naturally more and more miners will beef up their rigs (that is, spend more money in infrastructure and electricity) to mine BTC, because the rewards and fees are worth more. Note if they didn't do this, anyone could easily have a "free money" arbitrage play, and basic economics says that discrepancy in prices (i.e. the value of a BTC on the market and the cost to mine one) must be arbitraged away.
Think of it this way, if hash rate is independent of price, why does it take the electricity output of Argentina to run the network? It certainly didn't take that much years ago. The reason being that as BTC becomes more valuable there is more reward and thus more competition for miners to mine. As that happens, the hash rate will rise as more power is added to the network.
The whole point of proof of work is that it is proof that someone has spent the value in electricity validating a block.
As the price of bitcoin rises, naturally more and more miners will beef up their rigs (that is, spend more money in infrastructure and electricity) to mine BTC, because the rewards and fees are worth more. Note if they didn't do this, anyone could easily have a "free money" arbitrage play, and basic economics says that discrepancy in prices (i.e. the value of a BTC on the market and the cost to mine one) must be arbitraged away.
Think of it this way, if hash rate is independent of price, why does it take the electricity output of Argentina to run the network? It certainly didn't take that much years ago. The reason being that as BTC becomes more valuable there is more reward and thus more competition for miners to mine. As that happens, the hash rate will rise as more power is added to the network.