Build your business strategy around things that aren't changing

Really the sweet spot for consumer web is applying new technologies/innovative approaches that are changing to people's desires that are not changing.

People will always want to socialize + internet = social media

People like sharing photos + everyone now has a camera & internet on their phone = Instagram

People like to travel + internet sharing economy = Airbnb

This is a very similar observation as one from a recent post by Sam Altman [1].

1. http://blog.samaltman.com/electrons-and-atoms with a HN discussion here https://news.ycombinator.com/item?id=6291934