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I know some vegans who would disagree with that

I definitely would!

Usually, the reason people go vegan is to try to reduce (hopefully eliminate) animal suffering, and/or to reduce green house gas emissions from animal farming.

Cultivated meat deals with the first, and, depending on how it's produced, can probably entirely avoid the second as well.

I don't know the process in detail, but I would also imagine that cultivated meat is no more sourced from animals than a plant that was fertilized with animal dung, and that would still be considered vegan.

I'm not vegan, but I do keep Kosher and I'm sure there would be a huge debate in the Jewish community as to whether cultured meat was kosher.

Assuming that the animal that the original cells were taken from was Kosher (e.g. a chicken or a cow, not a pig), then would the cultured meat be Kosher? Would it not need to follow usual processes (specific slaughter techniques, salting and soaking the meat to remove blood, etc) if there was no animal/blood?

As cultured meat takes hold, there are going to be a lot of communities trying to take it into account. I'm sure there will be plenty of arguments as to the status of it as well. It should be interesting.

I know at least one person that has preemptively rejected cultivated meat because it requires the death of an animal.

Even though they know that a single animal's death could then spare uncountable billions of future animals.

... does that make the chicken sampled for cultivation Chicken Jesus?

If the vegan is there for ethics then cultivated meat should be all good. More ethical than cheese or leather anyway.

Maybe some will complain about the source of the starter cells or something.

agreed, regardless of whether or not it's ethical to raise animals for meat, the way we currently do it is an eldritch abomination where "cage free" chicken are kept so tightly packed they will peck each other to death unless debeaked, and where "cut from neighbors knife" is a common injury report at slaughterhouses.

Hopefully, while not being harmful.

I'm sure that it will initially cost a premium, before coming down in price as the technology matures. I'm also curious about the relative environmental impact that cultivated meat has versus raising livestock.

ETA: I found a study regarding cultured meat's environmental impact: https://pubs.acs.org/doi/10.1021/es200130u

According to this study, cultured meat is 7-45% more energy efficient, emits 78-96% less CO2, requires 82-96% less water, and occupies 99% less land than raising livestock.

for fast-food purposes, the plant-based meats (Impossible, Beyond Meat) were generally able to get in the door at parity with alternatives from what i can tell. i'm not sure about in-grocery-store, though. they've also been racked by waning consumer interest, probably because they seem "faddish" for lack of better wording. that, i honestly think, is the biggest hurdle to cultivated meat--not price.

Typically that's more of a CYA move. If someone finds something that isn't chicken cell they could sue for false advertising, but if it's 100% chicken cell nobody can sue for saying it was 99%.

I don't know, and maybe I shouldn't comment, but my first thought was that it might be some sort of edible lattice that makes sure the chicken cells grow in a shape that looks vaguely filet-like.