Surely the heat must be constant in order for the water to really boil?
Surely all this birthline, timeboxing and critical frequency stuff must break down somewhere?
Especially the critical frequency?
But maybe not.
Because the thing about critical frequency (and audio sampling frequency and video framerate) is…you turn the heat back on just before the water has had a chance to cool.
Let heat = input, the pans = our brain and the boiling water = the information in our brains.
Turn off the stove. Touch the pan. Ouch. It’s still hot.
Turn the stove back on. The pan simply hasn’t had time to miss the heat yet. Neither has the stove. Residual heat (or, latent heat? or is that something different?) took care of business for you.
As long as you are above the critical frequency, as long as you are above a certain sampling rate, as long as you have 24 or more frames per second…the heat might as well be constant.
The point, then, is not necessarily to have the heat on all the time, but to not let the heat go off long enough for the pan and water to cool.