[pongogogo]

Most of the startups we've seen grow massively in the last decade through word of mouth have been because people make a change and then tell others about it, i.e. viral growth.

If you switch to become veggie and start biking, and persuade >1 others to do the same, we should see exponential growth and you will have played your part in a substantial change for society.

I don't think it needs government intervention. The reasons to do it are compelling enough on their own with a little research. Look into it and consider making the change.

[camgunz]

This is generally because either it makes sense economically (YouTube dropped video distribution costs to zero), you avoid some unpleasantness (grubhub), or you're psychologically manipulated to more or less be addicted to a service (Facebook) -- in many cases all of the above. Network effects of going vegetarian are minimal, and have been since there's been meat.

It absolutely needs government intervention. For decades scientists have been warning about climate change and diets have not changed. If you look at any region with meaningful impact you'll see it's 100% due to regulation, whether that's penalties for bad garbage practices, penalties for water or electricity waste, etc. There is simply no way we crowdsource this, and my evidence is that we've had almost 40 years to do it and haven't even come close.