They worked well for us, we were updating a big system or adding functionality to it and a lot of the features were similar enough that we could reliably break the work down to sub-single sprint chunks and assign consistent story points to them
Though I have only been in one team that lasted more than 3 sprints relatively intact, and it's only that team that got good at story pointing work
The tricky part of lab grown meat is you need to keep it from being infected.
Keep the factory perfectly sterile.
Any time a vat is colonised by fungi or bacteria or a virus its contents would have to be dumped and the equipment sterilised
That's going to be expensive.
It will need feedstock. It will produce waste CO2
Meanwhile a cow has an immune system and eats low quality grass.
Lab meat will not be able to compete with field grown meat