While it may not make you feel like a Nietzschean superman, there are compelling reasons to consider finishing your degree and getting a normal job - for example, the chance to work with a large team of experts who know what they are doing, or to have access to world-class infrastructure, or to work in a field that you'd never be able to enter as an entrepreneur (steering Mars rovers, say).
It's fun to take a risk and pursue a dream (even if you don't appear to have any clear product idea), but there are reasons beyond risk avoidance why many people don't choose to go that route.
Your examples are of people that want to do other things, more so than being an entrepreneur. Those people obviously should do whatever makes them happy. For the people that want to be entrepreneurs, above those other desires, there's nothing worse than getting a regular job.
The world is full of people who wanted to be entrepreneurs, but got tied down in full time jobs. Some of those people manage to break free, but as a percentage it's probably quite low.
That shit pisses me off. Einstein and Feynman weren't entrepreneur's, and they did almost infinitely more than most of us will. Sometimes being part of a team in order to achieve something big is better than being your own leader to do some small, unremarkable thing.
I finished an MSc and made Feedback Army and started on After the Deadline at the same time. If both failed, I would tell myself "at least I have the degree"
This concerns me. If OP has enough time to "share everything", he's probably not spending enough time on the real work he has to do. Worse, the "sharing project" can easily expand to consume most of OP's time without him even realizing it.
OP, I admire your initiative and look forward to hearing about your success. But I'm willing to wait. I'd rather have you focus 100% on the task at hand and share with us later. I care less about the timeliness of your reports than the quality of your results. Best wishes!
Actual time spent on this is probably not worth worrying about. If he's like most people, procrastination and mistaken decisions will likely sap far more time from him than anything else ever will.
Documenting the startup process is a valuable endeavour, for both the author and his reader, which may not be done well, or at all, if left to the end.
It's a great feeling to be making the leap!
If I see something I like on Twitter, I go to the actual website to read the article (which I assume the author appreciates).
Also, using an RSS reader created a lot of subconscious pressure for me to read all the unread entries because it was just another "inbox". Twitter lists is a better alternative for me because it's just a stream.