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Then there were pebbles and stones that turned under him when he trod upon them ; and from them he came to know that the things not alive were not all in the same state of stable equilibrium as was his cave ; also , that small things not alive were more liable than large things to fall down or turn over . That upheaval would require a couple of things to fall into place : ( 1 ) a business model to convert what is basically an overgrown fan site into an actual advertising medium and ( 2 ) a tectonic change in the worldwide media economy . Arriving at a promising spot with lots of leaf litter , Griswold grabs a handful and quickly pushes it into the bag , then shakes the bag over the umbrella , and waits for spider nuggets to fall . Although they do not feed on the plant , their tunneling may cause cabbage seedlings to fall over ( Workman , 1983 ) . We have no other comparative advantages to fall back on . At the same time , the business decision for IBM might be just the first in a series of dominoes to fall and alter the PC landscape permanently , according to analysts .