When you invest all your effort on one go into a moderate-size plan, if the plan doesn't work you're screwed.
That is, you'll lose all of the investment.
There's another approach that you can do if you don't have to worry about running out of runway.
Put a small portion of investment into a diversity of very cheap acorns.
Then, wait to see which ones start to sprout, and put future investment into those.
This allows you to waste less of your investment in non-viable ideas.
Planting acorns is a thrive technique, not a survive technique.
If you don't have the runway to survive very long, the acorns can't help you even if they do start sprouting, because it takes time for the acorns to grow into something valuable.