Speculation. Service provision, infrastructure provision (hosted nodes). It's not very good for payments (that are small and/or frequent -- and no Lightning is

Speculation. Service provision, infrastructure provision (hosted nodes). It's not very good for payments (that are small and/or frequent -- and no Lightning is bad too (state channels are capital-inefficient)) despite what zealots would have you believe and it's not very well decentralised on a geopolitical level either. Bitcoin is a good introductory MVP example of what a blockchain is and it's greatest contribution is Nakamoto Consensus.