Big Ideas is an online course from Floating University. The university assembled experts in 12 fields, ranging from economics to art to psychology to physics, to explains everything a non-professional needs to know about a topic in 60 minutes.
All the video lectures are available online for free. Better yet: all the lectures have been transcribed so that you can read them. The only thing you’d have to pay for are the supplemental readings.
Big Ideas at Floating University