Summary Vibration Analysis Revisited:  Four years ago, I conducted a vibration analysis on the old diesel Caltrain cars . Recently, I...

From Jan, 2020 Updated analysis in 2024 with the new electric trains: https://www.nathanblack.me/post/from-diesel-to-electric-a-70-improv...

Objective: Starting from first principles of uncertainty, why one should invest with a long volatility profile amid increasing systemic...