One molecule will irreparably damage you?

In the right spot, yes.

What does it do?

Really? What spot would that be? I challenge you to come up with a spot where a single molecule will irreparably damage a human.

This is a fun game. Do I get to place it anywhere?

Single molecules of plastic getting involved in the process of rna transcription in cells resulting in genetic mutations or cancers.

That's the spot!

Would a single molecule causing a single cancerous cell be sufficient to trigger a cancer?

EDIT: Should have searched. https://www.cancerresearchuk.org/about-cancer/what-is-cancer...

It checks out that a single unchecked self-reproducing cell could rapidly create a lot of them. I just thought there'd be control mechanisms to cause other cells to attack them.

But it is realistic apparently! Welp!

Of course there are control mechanisms. The question is whether plastics are more or less carcinogenic than everything else we deliberately consume. All signs so far suggest less, far less.

Sure, sure. I was only interested in the no-minimum-threshold model and what were the causative things there. As always, I should have asked ChatGPT since it had a pretty good explanation.

The spot were it mutates a gene leading to cancer.

quantify it