Most employees don’t realize that that the unexercised options they worked so hard to vest completely vaporize after they leave the company, usually after 90 days. If you haven’t exercised your vested options, your ownership goes to zero. Even if the startup eventually gets acquired for a billion dollars, you get zilch. So if you join a startup and don’t exercise, you should probably try to stick it through to an exit. http://gigaom.com/2011/06/05/5-mistakes-you-cant-afford-to-make 这是正确的理解吗?