Do the homework, find the one big idea, promise a real benefit — and keep the one test that actually counts: did it sell.
Printer, scientist, and founder who turned thrift, wit, and small daily experiments into a working system for getting on in the world.
She got the machine to do the copying, then spent twenty years losing the argument about where the field should go next.
Creates the market instead of surveying it and carries its own name to the world — and owns the format war the same nerve went on to lose.