Re:<"What is your evidence that they will not be commercial viable?">
That's what separates us from the animals in making investment decisions. Mr. Bordynuik could claim he has the exact GPS coordinates for the Lost City of Altantis and I wouldn't be able to prove otherwise either.
As an investor, you should be asking proof positive from the person to whom you are giving your money (JBII), not proof negative from someone for whom it would be exponentially harder to prove otherwise while having no vested interest.
I've seen a lot of these pyrolysis companies who claim to be just about to be ready to go. Most have red flags just like JBII. His claim of getting free (actually getting paid to take) hydrocarbon-only plastic. His inability to name a verifiable buyer, refinery or otherwise, etc....
If you are willing to invest until you hear proof negative, I have a bridge up north to sell you for a bargain.
.