You simply don't understand, and will not understand, until you spend some time cutting wood with a circular saw and a bandsaw.
You won't understand about the waste due to having to plane out the cupping of plain sawn lumber, until you cut a tree, plain saw it, and air dry the boards for a few years, then try to size them.
You don't understand the fact that a fine piece of walnut is almost entirely wasted if you plain saw it into boards with mediocre figure, when you could have gotten lots more fine blanks out of a quarter sawn log.
You aren't an expert until you have done it. You haven't done it. I have.
I don't care if you waste your own time and effort not following my advice. Just don't mislead others.
