[smitty1e]

The four abstraction layers reflect the reality of technological drift over time.

Even stipulating a Wand of Internet Technology (WIT) that could produce the One True Stack (OTS), two things remains undone:

- fixing all the old stuff (or does OTS emulate it all?)

- precluding further drift (or does OTS end all that?)

[ivan_gammel]

Those are not the Problems, just common problems with known solutions (Migration Path and Let-It-Go).