Your comment about microorganisms is about 'where to draw the line' and your comment about 'tend to infinity' implies you like the 'appeal to extremes' form of argument.
I'm interested in what we're doing in the world now and I'm happy to suggest where a line should be drawn. I'm not worried about absolutes.
I would say that's accurate. I think extremes can bring out honest positions in an argument. Where would you suggest we draw a line? How long should a chicken live before we decide to kill it?
See Article 12 for poultry. There are details about how they should be kept, density, materials (e.g. straw or turf), lighting conditions, access to perches, access to outside space. Minimum age at slaughter is 81 days.
https://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:...
edit: Lab grown chicken exists, its just wicked expensive at the moment. Just a matter of time.
https://www.vox.com/future-perfect/2020/12/2/22125518/lab-gr...
Something along the lines of: If its got eyes and an arsehole, lets treat it with some basic respect
https://www.vox.com/future-perfect/2020/12/2/22125518/lab-gr...
Would it not make sense to re-use the circulatory, filtration, energy production, digestive, and excretory systems that evolved over millions of years to locomote chicken flesh, rather than try to re-engineer these systems? Just ditch the brain. If there’s no sentience, what is the ethical difference between this and vat-grown synflesh?
I remove the bones anyway.