This raises a very important point: we can’t know every user’s reason for why they’re visiting our website, but we can use the tools made available to us to help guide them along their way. If that means storing an HTML document for use offline, we’re empowered to help make the experience as easy as possible.

Checking in is akin to sharing your code with others, and once out in the world, it’s hard to predict what that code will do.

Complexity, interconnectivity, novelty, & creation is beyond any single entity's ability to effectively forecast.