I think that's pretty obvious.

I wish determination was as easily spotted as the intelligence treshold.

I wouldn't say it's obvious. A lot of people have self-doubt. I for one don't know if I would be able to build something like Dropbox, for instance. But I guess the key here is to try anyway and learn along the process. Paul Buchheit said he wasn't qualified to build Gmail when they asked him to.

I’m in the middle of the most ridiculous stunt I’ve ever attempted in my life, and while I can’t talk about it I can say this:

> the key here is to try anyway and learn along the process.

This is exactly right. Keep pulling on the string and see where it takes you; if you’re as determined as you say you are, that determination will be more than enough to compensate for whatever intelligence you think you don’t have.

If you're doing anything novel, almost by definition you can't be "qualified" to do it.