You could say the same thing about variables, expressions, statements, and structured programming. It's a lot higher level than assembly language or machine code programming.
> Registers, addresses, and machine instructions are real. They're what the hardware understands. You can't just place an ALGOL book on top of an IBM 709 and hope that the hardware learns about expressions, variables and records by osmosis.
> Registers, addresses, and machine instructions are real. They're what the hardware understands. You can't just place an ALGOL book on top of an IBM 709 and hope that the hardware learns about expressions, variables and records by osmosis.