Earlier quoted context omitted.
Me too, I went all in on Apple stock when the iPhone was announced, on margin I was so convinced. Sounds great right? Well broker sold everything during the 2008 meltdown and lost everything.
I learned something new. A broker can sell your stock without your consent?
Tangentially related: Martingale betting system (https://en.wikipedia.org/wiki/Martingale_(betting_system)). Aside from its theoretical impossibility, this system typically fails in practice when the gambler hits a house limit and can no longer continue placing bets.