Grateful Dead

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Jack McMahon
• Astrophysics, • Sports (Philadelphia teams), • History (War, Railroad, Aviation)


About Me

The only obsession of mine that reaches the depraved depths more so than Grateful Dead is astrophysics / cosmology.

As far as I'm concerned, Grateful Dead's music serves as the perfect backdrop when it comes to wrapping your head around all the mysteries and wonders of the universe!


Member for
2 weeks 2 days

J. McMahon