timelets

...the simplicity of the perceptual judgment on which the setting up of the proof culminated is what made the difference and carried conviction. Pasteur was not stinting in the laboratory and outside in concentrating interest and discussion on a few extremely simple perceptual contrasts: ab­ sence/presence; before/after; living/dead; pure/impure.
...
even if the Pasteurians developed a biology in the laboratory, they did not practice a labo­ratory biology. They did not leave to others, as apparently happened in England, the job of using or applying their results, contenting themselves with "pure science."

--- BL, TPoF, 1993.

cf. AlphaGo.
"Give me a lever long enough and a fulcrum on which to place it, and I shall move the world." -- Archim.

What is a fulcrum? How do you know that a system is fulcrumable and/or already has a fulcrum?