> I would think that in 2021 we know far more about the "qualities and limitations" of products under development - through virtue of more sophisticated testing

> I would think that in 2021 we know far more about the "qualities and limitations" of products under development - through virtue of more sophisticated testing, more sophisticated test equipment, and advanced analytical capability. Not to mention that the current state of knowledge is based also on what we've learned so far about existing good and bad technologies.