Buy more when it drops, sell only when it rises—this strategy sounds like a surefire winner, as long as you have a steady stream of cash coming in. Someone who earns $100,000 a month at 60 can obviously ride it out. For ordinary people, a 30% drop means first thinking about the mortgage. This whole setup is a rich person’s game, not a strategy. Save this post and come back tomorrow to see who’s swimming naked.