First of all, don't use introversion as a crutch. It may be net-negative energy for you to perform in situations that extroverts find energizing, but this doesn

First of all, don't use introversion as a crutch. It may be net-negative energy for you to perform in situations that extroverts find energizing, but this doesn't keep you from doing them. You just need to recharge afterwards. I think the reasoning is that as a founder you are, like it or not, constantly having to sell your idea, company, and personal involvement. You have to sell to investors, to potential employees and of course to customers. You even have to sell to vendors, since you want to use their services as cheaply as possible. If you can't do that, you need to find a co-founder who can. Otherwise you can go and do a startup by pure bootstrapping, but don't expect to get sympathy because you can't sell when investors need selling just like anyone else. I can't play basketball because I don't have the physical attributes necessary for the sport, oh well. Life doesn't owe me that opportunity and you're not owed an investment.