I have heard many people here saying that humans are going to go extinct in the next few centuries. I see no reason why to think that this will occur and I think that such fatalism is unproductive and may very well create a self fulfilling prophecy if a large portion of the population starts to believe it. Some people will question whether humanity deserves to live or not and my response is that they should think about how cruel it is to starve a small child, multiply that by over a billion and you get human extinction, as well as questioning whether there even needs to be a justification for human survival in the first place as justification is a human concept that may not apply to the existence of humanity itself