Originally Posted by Bill Kapaun

How about mirror welding in a nuclear reactor?
If you have mechanical aptitude, you have mechanical aptitude.
Bicycles still have some "quirks" compared to other mechanical things.
I served an apprenticeship as a Boilermaker in Puget Sound Naval Shipyard and I've assembled, calibrated & repaired state of the art optical oceanographic instruments.
I still learned more "new stuff" on bicycles than I would have expected.
You need to deal with more bicycles & repairs before you presume everything is simple.

You learn who to ignore.
Some just want a high post count and just have to have the last post, no matter how inane.
some have the thinking level of a 10 year old. IF they haven't seen it, it doesn't exist.

Just ignore the idiots.Don't feed the trolls.