[wallacoloo]

Wow! This was way more involved than I expected, and a super interesting read.

I did get confused near the end, when the author began speaking about "total force". The author states:

> Total Force (gfmm) is the area under the press force curve from 0 mm to bottom out

And

> The term Actuation Force is often incorrectly used for Force at Actuation (63 gf below). As Actuation Force really means how much force did it require in order to activate the switch (gfmm). So, just like Total Force we take the area under the force curve, but from 0 mm to actuation point

It seems to me that the author is measuring work (i.e. the integral of force over distance). Seems like it would be easier to understand if terms like "total work" and "actuation work" or "actuation energy" were used instead. To define "actuation force" in a way where actuation force != force at actuation strikes me as bizarre.