Turbulence through sustained vortex ring collisions
An amazing video on a fluid dynamics experiment that produces a confined turbulent region in sustained fluid flow.
Going fast is about doing less
This is a lovely youtube video exploring code optimizations by cleverly pruning the state space in a Code of Advent problem; it has a lot of good generic advice, and quite a funny ending.
By far the most precious resource Reddit gets from you is your insight; Reddit needs posts, especially posts with good insights on specific topics. This is the treasure trove they are sitting on and the value proposition for shareholders: a gigantic collection of long-form discussions on all kinds of niche topics that can be used for targeted and generic AI training.
So by continuing to use reddit, you are providing them with the most precious resource they seek anyway. This is why I am anxious to see a genuine alternative to reddit.
There are tons of misconceptions about mathematics, but the biggest and most baffling one is: that no new mathematics is being created, that the field is "done".
The opposite is true: there are more open problems than ever, and research is frantic in mathematics with hundreds of thousands of serious new theorems being proven every year by professional mathematicians, and entirely new mathematical vistas being discovered every few years.
In fact, the pace of research is so fast that we are now creating the foundations for databases of mathematical theories and their proofs in order to better classify and preserve them.