> This is why your snark is so easily detectable

If I argue with my wife about medical matters (she is an MD) her response might look or sound snarky to some. In reality, she would be correct in telling me how and why I would be wrong.

You really need to stop, because you are digging a deeper hole with every word. You just said that 3D printers and drone are easy consumer products to develop. You truly do not understand what it takes to develop these products. The vast majority of them are still incredibly unsafe. There's a minority that have greatly enhanced safety. It should not be surprising that the safe systems (with a couple of exceptions) cost tens of thousands to hundreds of thousands of dollars and address commercial/industrial markets, not hobby. The amount of engineering and testing these systems require is nothing less than massive.

Context: I've been designing, building and flying all kinds of RC planes, gliders, helicopters and multicopters for four decades. I have been designing, building and using 3D printers for over two decades. Our latest 3D printer for internal use is equipped with Teknic Clearpath motors with fully machined structure and parts made on our Haas CNC Vertical Machining Centers.

Again, please, chill, nobody is insulting the hobby world (which you seem to be offended by). These are different worlds. That's how it has been from the start of time. And that's OK.

Here, I'll help you stop. Let's agree to disagree. You are absolutely right and I am wrong.

Live long and prosper.