🚀 go-pugleaf

	"...  So your increase in productivity would have to
	be at least 20% to break even."
Not at all.  Suppose your time is worth $30,000/yr.  I will sell you a
two dollar widget that will increase your productivity 10%.  According
to your statement, you would not buy the $2 widget from me because it
doesn't "save" you $6,000/yr; it only saves you $3,000/yr.

What you were trying to say is that the ROI of OA should be higher
than other investments.  Yes, I agree.  But your statement above is
incorrect.