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