This is referring to the minimum cost in fees for a transaction to get copied from the mempool to a block.
Only when a transaction is in a block is it a valid transfer of bitcoin.
Its nothing to do with trading or exchange rates or energy costs or fiat.
Bitcoin is working exactly the same as it has always, however now because of the backlog, transaction fees are very high.
In the order of Western Union + Visa Fees + Bank Wire fees all at the same time!
I made a very small transaction for a friend a week ago (~$50) and paid $2 USD in fees. That is not enough and the transaction will sit waiting until the backlog decreases, it may never clear.
Bitcoin is kind of broken right now.