I was toldo the other day that in ten years there will be no testers because developers will do all the testing.

I’ve seen how it works out in practice: there’s not enough time for testing and for developing, too, developers are going to burn and the product is going to be shit done and shit tested. Maybe it works if your company is willing to spend extra for less results by someone doing all the stuff less efficient than what they could, but that’s a rare occurrence.