Quote Originally Posted by pcb01 View Post
You're quite right. This is not a rigorous experiment because results from such should be reproducible by others,
...snip...
Unfortunately, there is more of this that goes in in medicine than most people suspect.
Yet it is worth doing!

Such experiments i.e. quality notes
do set the stage for more rigorous
efforts.

It is the deliberate note keeping that makes it work, shaving or medicine.