Time frame is always a tough one. Let's try to bracket it with what we know, and be clear about the goal. First, if we're talking about running an uploaded hu

Time frame is always a tough one. Let's try to bracket it with what we know, and be clear about the goal. First, if we're talking about running an uploaded human-equivalent AI, we've got the processor power for that now, but it takes up a large server room. So I'd say we need to shrink stuff by at least 2 orders of magnitude to launch that into space. With corresponding gains in efficiency. So for that I think we're looking at 10 years at current rates of progress. Tack on another 5 for radiation hardening, because that estimate was based on commercial-grade hardware, which is almost as fragile as meat. After you have that, it is a small matter of programming :-)