Unix and C

[Doug Gwyn]

In article <2679 at cirrusl.UUCP> dhesi%cirrusl at oliveb.ATC.olivetti.com (Rahul Dhesi) writes:
>Given that one can write vi macros that create a Turing machine, ...

That is certainly NOT given.  In fact, it's obvious that a Turing machine
cannot be implemented at all.

>... it should be possible to rewrite UNIX in vi.

Also not true, because UNIX has some performance constraints that any
implementation in "vi" command language would be unable to meet.