I like AMP. It's possible to write fast websites without it, and I do do that for my sites. For for big, non-tech sites AMP has provided sufficient motivation to offer a fast version. Nothing else has managed to do this before. I'd rather have fast AMP pages of all those news sites than having to load the slow default view. Experience suggests that the options aren't "fast with AMP or fast without AMP", but "fast or slow". It's for incentive reasons, not for technical reasons, but I'm still glad the fast version exists.