"Apropos the Long-Lost Letter from Levinson to Smale, Now Found!", fascinating story about what prompted the discovery of the Smale Horseshoe on the beaches of Rio, by Jair Koiller & Indika Rajapakse in the Notices of the AMS, bit.ly/4kNlL2t #mathematics Just in time for Smale@95, bit.ly/4eVUzNR