CGP Grey on how ideas spread as ‘thought germs’ (memes in the traditional sense) over the internet, how these ideas use our emotions to survive longer and how ‘opposing thought germs’ (divisive ideas) can survive indefinitely.
In a similar vein, here is a near-future startup promo video by Tom Scott:
The Bubble: imagine the web without trolls, or shocks, or spam
What if you could have a perfect filter for the web? Anything you’d regret seeing or reading: it’s gone before you even see it. Welcome to the Bubble.