Originally Posted by
permanentjaun
Rotating mass is certainly not a myth. The argument you're looking for is that after a certain point the cost to reduce weight so much further becomes so cost inefficient that you're better off focusing on losing your own body weight than on the bike.
But that's not a physics argument, that's an economics argument.
ime, Weight Weenies -- and, for that matter, all hobbyists, enthusiasts, and professionals in a hardware-centric field -- aren't interested in the economic argument until
after they've addressed the objective motivations. If the first thing you worried about is "that's too expensive" or "that's not a healthy ROI" you'd never get started in the first place.
First solve for X (where X = how much of an asset this thing could potentially be), then let the individual worry about the
value of X. Because X is at least objectively measureable in most (many?) circumstances. Value has to take into account that huge variable which is the individual's perception. And bank account.