Gets a few facts wrong— E.g. the maximum block size is 1MB not 10MB, and there is no facility to increase it without replacing all the software—it's as fundamentally hard to change as the supply of coins because it's also a scarcity which is essential to the security of the system. (without it, the system would rapidly become centralized as miners produced enormous blocks taking every single with-fee transaction; and then no one but miners could afford the computational, storage, and network costs of validating the gigantic blocks; nor would there be reason to pay substantive transaction fees to fund security).

Overall it's pretty good.