Traditional meat sources will not be able to satisfy the world’s growing demand for protein, and that cattle, in particular are an inefficient use of resources.
Cattle are very inefficient animals in converting vegetable proteins into animal proteins. We lose actually a lot of food by giving it to animals as an intermediate. At an environmental scale in methane and other greenhouse gases exhaust, it is also for the environment not a very healthy system.
A year and a half ago the professor of vascular physiology gave the world its first taste of a lab grown beef burger. It passed the food critics’ taste test, but at more than a quarter of a million dollars, the lab quarter-pounder was no threat to the real deal.