Newsgroups: comp.arch
Path: utzoo!henry
From: henry@zoo.toronto.edu (Henry Spencer)
Subject: Re: 64-bits, How many years?
Message-ID: <1991Feb22.182611.21649@zoo.toronto.edu>
Organization: U of Toronto Zoology
References: <9102171510.AA24745@lilac.berkeley.edu> <1991Feb18.163010.31688@m.cs.uiuc.edu> <3209@crdos1.crd.ge.COM> <1991Feb21.170537.1441@druid.uucp>
Date: Fri, 22 Feb 1991 18:26:11 GMT

In article <1991Feb21.170537.1441@druid.uucp> darcy@druid.uucp (D'Arcy J.M. Cain) writes:
>>the largest physical address space we will even need. I have lots of
>>faith in new development, but I have faith in relativity and physics,
>>too.
>
>Boy, that's the kind of statement that can come back to haunt you in ten
>or twenty years.  :-)

Yes, such "proofs" have a tendency to have a lot of hidden assumptions.
Like the "proof" in the late 70s that it was impossible to make 64Kb DRAMs
with optical lithography, which assumed no change in cell design and no
fundamental improvements in the optical processes.  (In fact, both cells
and processes changed, and now people are gearing up to do 64Mb (note M not
K!) DRAMs with optical lithography.)
-- 
"Read the OSI protocol specifications?  | Henry Spencer @ U of Toronto Zoology
I can't even *lift* them!"              |  henry@zoo.toronto.edu  utzoo!henry


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