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Subject: Re: [bitcoin-dev] Block Size Debate Analogy / Workaround: Bitcoin
is Like Windows 3.11
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> In some ways, however, to me at
> least - Bitcoin is like Windows 3.11.
[...]
> Now there is a huge debate about if there
> should ever be a Windows 95, XP, Pro, etc., that scales better and makes
> advances over time, but doesn=E2=80=99t support facets of older versions =
as it gets
> updated.
I like your analogy for how it frames blockchain compatibility in
terms of the backward compatibility that hopefully most
computer-literate people already understand, but there's a key
ingredient missing.
It's as if, if everyone in the world did somehow upgrade to Windows
95, it would become forever impossible to take a program written *on*
Windows 95 but *for* Windows 3.11, and successfully run it on a
Windows 3.11 computer. It would be as if cross-compilers from Windows
95 to Windows 3.11 didn't, and couldn't, exist. Any coins that have
post-hardfork coinbase outputs anywhere in their tree of inputs (a
Windows 3.11 program, that's written on a computer that has ever run a
Windows 95 program) can never be spent on the no-change side of the
fork.
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