"no one has any idea what this company is going to be worth someday"

Quite true.

Gates had no idea what was coming.

Jobs had no idea what was coming.

Iwentash had no idea what was coming, though he thought he knew when it was coming. He pitched it to the Board. Bought large quantities, and developed indigestion from the double portion of humble pie that he was served. He's now on the outside, looking in. His proximity to the oracle did him no good at all.

We can never know.

Stocks like POET can cause you to look brilliant, or foolish, and sometimes in the same week. The ability to laugh at oneself makes investing in POET a useful trait.