Scott Galloway, professor of Marketing and Brand Strategy at NYU Stern, recently delivered a presentation on the Gang of Four: Apple, Amazon, Facebook, and Google. These dominant companies are also often referred to as the “Four Horsemen.”

The video is about 16 minutes long and I would highly recommend that you give it a watch.

It’ll be like drinking from a firehose, but there are so many fascinating takeaways. You’ll also quickly discover how far reaching the societal impacts of these companies have been and will likely be in the future.

If you can’t see the video below, click here.