I want to know what you guys think will be the biggest event for bitcoin in the next 5 years. What problems will be solved, what problems will arise, will mining centralize more (maybe in the US?) or disperse across the globe? When we talk about "bitcoin transactions", will we be referring to on-chain, or lightning transactions (i.e will lightning be more relevant to the avg user than on-chain)?

Are there any contentious BIPs, that could force another block-size type war? If there are none currently, what part of the protocol do you suspect may eventually lead to the next hard fork?

Please don't reply "the biggest event will be btc mooning/hitting 100k", I will delete those replies as they are not constructive.