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REWRITE
– Joel Spolsky, Things You Should Never Do, Part I [2000]
“They did it by making the 
single worst strategic mistake
that any software company can make:
They decided to rewrite the code from
scratch.”
TRANSCENDENT
SOFTWARE
😃
😐
😠
Net gain: -2
Cost of change: 10
Value of change: 8
ETERNAL VERSION
CONSIDERED HARMFUL
COMPETE WITH
YOUR VERY BEST IDEAS
It’s easier to justify
improving what is
than to start fresh
– Louis C.K.
“There there’s a huge challenge in not
having your old act. But I think you
rise to the occasion. You won’t rise
to the occasion if you don’t put a
void there: you have to take away
your old material from yourself.”
Help people
make progress
on projects together
HONOR
YOUR LEGACY
Q&A

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