But I was touched not only at the passage of these fixtures in my mental landscape, but also at the swiftness and dispassion with which the market swallowed even the most resilient enterprises. Businesses that had seemed unshakable a few years previously had disappeared in the span, seemingly, of a few weeks. Whatever role they played passed on to other hands, hands that would feel briefly invincible and would, in their turn, be defeated by unforeseen changes. These survivors would also come to be forgotten.