They say they’re taking about tensile strength at the footnote. But teeth would be more likely to be compressively strong. They don’t get pulled on much.
The whole thing seems very confused. Anyway let’s build space elevator?
Surprisingly Amazon is actually pretty constrained. There are usually only 3-10 versions of a given product but sold by hundreds of different resellers.
When I was shopping for a water distiller there was only one large one but branded for ten different Chinese companies. (And They all had the same dangerous flaw where water could spill on the electrical plug.)
Honestly just market to customers that feel deceived. They just log in and enter an address and post a review. No listing data needed.
You could get really sophisticated with quality checking reviews.
(We tend to believe all review systems have to be bad because that’s all we see.
But most reviews systems are broken because a working system is a conflict of interest for the platform they’re on.)
Honestly a great start up would be a review system for house listings.
Users can rate how accurate the description was, the real life flaws and even upload their own photos.
Side note: last time I looked for a house I really wasted 95% of my time because every house had one unique major flaw that would have made me not even bother going to see it.