What Tom means, if I know him as well as I think, is not literally the "linux kernel" of tomorrow will run on Caffe, but rather "the linux kernel of tomorrow", being some important, fundamentally important, unifying aspect of computing that emerges in the future, may turn out to be machine learning based.
Yes to @eof's response. He does know me well, and should be able to clarify in my absence.
There is going to be an AI engine that we use in the future in a similar way that we use Linux today. I mean that "future Linux-ish AI engine" and unless Linus has been busy ML-ing, it won't be called Linux.
