BTW, shallow thought wasn't meant as a derogative. It's what we monkeys do best, after all. It'll result in a different profile of swings, hits, & misses than other approaches, that's all.
(also, the irony that the new yorker article also suggests how we're really good at seeing the faults in others thought processes but not in our own is hi-larious)
Best of luck!
My sense is that most wannabe entrepreneurs do not have these qualities. And without these qualities, it will be difficult to succeed even with a world-class idea, or with all the money in the world, or even with great intelligence and capability.
The helpful words from you, then, would be the ones that change the would-be entrepreneur into an incessant creator.
Let us assume that such words exist, and that the supplicant (and I use that word advisedly) implements them. I reckon it would take a year (or possibly less) to demonstrate that a sustained change has occurred, thanks to those words.
The question arises, of course: do such words exist, and if so, what are they?
Note that if you discover these words, then they will be worth, literally, many billions of dollars.
Think big. Start small. Iterate often. If you aren't failing, you aren't learning (or trying).
Money from customers beats money from investors. See if you can get that. And if you can't, find another metric for success.
More often than not we get in our own way. This is not something that you can consciously change, even if you are aware of it. There are several kinds of beliefs, and some of them are ingrained deep-down inside of you. We often make the mistake of thinking that our minds are like machines, which can be constructed in different ways - but minds are more like life - growing, changing, in lots of ways.
So the words must be seeds. It is easy to describe the outcome that you want, but very hard to construct a seed that will get the person there. So difficult, in fact, that it may not exist, or if it does it may take years to grow.
Learn to meditate. Learn to accept reality for what it is, learn to stop fighting reality. Learn to accept yourself and love and laugh and work with a vigor that you've only barely tapped.