There are lots of biotech and mining companies who promise the...

There are lots of biotech and mining companies who promise the world, deliver nothing and continue to survive on the largesse of new shareholders who fall for whatever hype is in the next "story". Many go bust because the game is up and people eventually realise.

There is one recently retired guy who made a multi-decade career out of never having discovered anything until 2 years ago.

Successful investors follow successful companies and management.

...and I will state again, i made a small profit on NBS. Luckily I got out in time and have not invested since either short or long. It is a company with a history worthy of ridicule.