## Recently popular

### When Math Gets Impossibly Hard

5 min read · 59 saves · Sep 14th · David S. Richeson · Mathematicians have long grappled with the reality that some problems just don’t have solutions.

### Statistics, lies and the virus: Tim Harford’s five lessons from a pandemic

56 saves · Sep 10th · In an age of disinformation, the value of rigorous data has never been more evident

### The Simple Math Problem We Still Can’t Solve

8 min read · 39 saves · Sep 22nd · Patrick Honner · Despite recent progress on the notorious Collatz conjecture, we still don’t know whether a number can escape its infinite loop.