ETH noob here. I don't understand why load would be a problem. Isn't the point of ETH that "miners" provide the space/cpu to execute contracts, and get paid in gas? Why doesn't "too much load" translate to "greater gas rewards" and hence to "miners switching from other cryptos to mine eth"?
The issue is that ETH only can handle a certain amount of transactions per block (based on its block size). When the network gets overloaded, all of the potential transactions cannot be held in a single block and must be delayed until the next block, leading to higher fees for each transaction, giving it a higher priority and making it more likely to put in a block of a certain size. Same 'problem' as bitcoin; too many transactions are being fit into a finite space per block increasing competition to have your transaction in a block, but really it's just basic scarcity economics.
