I loaded this on a 4g connection and it took 14 seconds from click to progress bar disappearing. AMP talks about sub second load times on mobile. What might be in the way of that being realised?
In contrast, HN loads in half a second on that connection.
Obvious result: AMP is bloated.
That being said, I just received 239 ms with Pingdom.[1]
The majority of time spent will be on getting the 170kiB AMP lib.