Hobbyist/dilettante into Relativity (from Aristotle onwards), self-taught, very selectively.

Specializing in SR visualization, GR geodesics, and aspects of learning/teaching the subject, including the "terrible twins".

https://www.youtube.com/playlist?list=PLvGnzGhIWTGR-O332xj0sToA0Yk1X7IuI

https://github.com/m4r35n357/FirstPersonRelativity

Mathematical/programming interests:

Solving ODEs using Taylor Series and "automated" detection of chaotic solutions

https://github.com/m4r35n357/ODE-Playground

Kerr orbits (for particles and light) using Symplectic integrators

https://www.youtube.com/playlist?list=PLvGnzGhIWTGRuIsHzDLdeWS4GSZ9CIY-b

https://github.com/m4r35n357/BlackHole4dVala