When it comes to improvements, not everything is solvable on layer 1. Due to technological constraints, certain changes are difficult or almost impossible to do on the main blockchain network. Ethereum, for example, is upgrading to Proof of Stake (PoS), but this process has taken years to develop. Some use-cases simply cannot work with layer 1 due to scalability issues. A blockchain game could not realistically use the Bitcoin network due to the lengthy transaction times. However, the game ma...