🕳️ What Happens If You Fall Into a Black Hole? Time Dilation, Spaghettification and Light Bending

Drop a probe into a non-rotating (Schwarzschild) black hole from 3 to 4 billion solar masses and watch it from two points of view: the falling observer reaches the singularity in a finite proper time, while a distant observer never sees it cross the horizon. See tidal stretching across a 2 m body (lethal outside a stellar-mass hole, mild at the horizon of a giant one), the photon sphere at 1.5 r_s, the ISCO at 3 r_s and a ray-traced lensed accretion disk, with proper-time and tidal formulas checked numerically. Classical general relativity only; the lensing shader is an approximation.