Do we even know enough yet to answer that question? And another thought is will we be able to afford it?Seems to me if we decide we can't do that then someone should be thinking up something to do about population control here on our own small planet? I don't know what the figures are but how many more people can we support before there will have to be some type of control? It surely can't continue unchecked forever? And who would be the one to decide?I know this is kind of a far reaching thought but there are no dumb questions are there?