[lodovic]

Solid research really needs much longer timelines. Let's take some hypothetical and unlikely scenario that offspring of people who received an mRNA vaccine develop a medical condition. Mass vaccination would affect everyone so we cannot afford to be careless here. While the chances are remote, they are still above 0% and therefore 2-5 years of research seems just not enough.

[ben_w]

0% isn't a real probability: https://www.lesswrong.com/posts/QGkYCwyC7wTDyt3yT/0-and-1-ar...

The rest of the argument is fine in so far as it goes, but because we already see acute and chronic damage from COVID, the hypothetical undiscovered long term damage from any given vaccine (and there are many fundamentally different ones, they're not all mRNA) would have to be both surprisingly frequent and severe just to get up to a swings-and-roundabouts with the actual illness.