This isn't really the topic of this thread, but I believe that when I'm older lab grown meat will become a regularly available food item at the grocery store. I don't mean some fake meat products like the impossible burger, etc., but literally where they are growing meat from cells that are created in a lab. This would literally be the same premise as lab grown organs, etc. I believe that this is something that will become mainstream for multiple reasons. One, many areas of the developing world simply do not have the ability to raise animals on a mass scale, this is a combination of local climate, geography, agriculture, available water, etc. I also believe that this may become a thing due to environmental concerns, raising cattle for beef requires substantial amounts of water per calorie grown compared to other foods. We also aren't factoring in the feed for these animals and the amount of land that has to be dedicated for the raising of crops that will be their feed, Alfalfa is a good example. If science somehow allowed meat to be grown in lab, where it tastes the same, has the same qualities, nutrition, etc. all of these environmental, agricultural and water and land resource constraints are no longer an issue.
I'm also not even factoring in the ethical side of things. I personally feel that raising and slaughtering animals is not at all an ethical issue, what is an issue though is the factory farming techniques that are often employed. Many of the cheapest meat products you can find at the grocery store are from animals raised in these conditions.
I encourage all of you to buy the cheapest eggs you can get at a local walmart and then go and try to find some pasture raised eggs, they may have these at wal mart as well. Look specifically for pasture raised, not cage free or free range. Crack one of the cheap eggs into a pan and then crack the pasture raised eggs in the pan. You will notice a huge difference between the yolks of these two eggs, the pasture raised ones are a golden orange and the cheaper ones, which are from chickens in cages, are often a very pale snot like clearish yellow.