> A basic home computer could easily mine all of the blocks if the difficulty was low enough (i.e. there were no other miners).

It's pointless to suggest hypotheticals that aren't even remotely applicable in the real world.

Nevertheless, this thread did raise some questions, particularly about scalability (ie. if each block has a max capacity and blocks are mined every ten minutes, how to account for an ever-increasing amount of transactions per time-period between blocks?). There appear to be some proposed solutions to this: https://en.wikipedia.org/wiki/Bitcoin_scalability_problem