The most direct and obvious consequence of such an event, of course, is that the miners will no longer receive rewards for mining, which is, despite the considerable slowdown in the process of calculating blocks, the main part of the financial attractiveness of mining. Miners will receive only commission for transactions, which for many of them may prove to be economically unprofitable, i.e., simply will not cover their costs. Then, theoretically, a mass outflow of miners and an avalanche-like reduction in the number of computers on which the global block-chef system is maintained and, as a result, the destruction of the entire network or its centralization in the hands of the few remaining, which is a nonsense for a real crypto currency, can begin. But this, I repeat, under the existing protocol, but it can be changed.
Can the protocol be changed actually? Who can? Just asking 'cause i was wondering if it's possible...