We don't know that. We don't know if this particular kind of tool can do "useful" things without also developing the ability to write a sonnet. And they are absolutely a frontier. I am not suggesting we should continue building them just because they are, there are many technologies which could have been built had we thrown the amount of resources we have here and there is a case to be made for not doing it at the pace we are or if at all. But we can do that without diminishing what exists.