As valuable as that diversion no doubt was for you, we still haven't established from your data sources how many people are involved in R&D in a hobby/pleasure/necessity capacity and how that compares to those who have chosen to dedicate their lives towards it.
If it is not in the data, you can say so, but it becomes impossible to know how the average person performs in R&D without it. Which then returns us to the original question: "Based on what?"
I appreciate you wanting to reorient the paper for me, but I wouldn't call that a win. I was fine with how it was already at rest. If anything, I lose, as the time you put into that was time not spent getting beck to me on the questions I have about the actual topic at hand.
There was some stuff about you being a computer screen then asking me for sources then pointing out typos. Not really sure what you're asking me for at this point.