The term absorption is derived from particles that, when they hit an obstacle, get absorbed or stick to it. An absorbing barrier is like a trap, once in, you can’t get out, good or bad. A person gets rich by some process, then, having arrived, he stays rich. And if someone enters the lower middle class (from above), he will never have the chance to exit from it and become rich should he want to, of course—hence will be justified to resent the
