Sandbox preview · Simba shows what a black hole looks like

A pixel-faithful, non-interactive replica of Simba in its wide layout, mid-conversation, answering “what does a black hole actually look like?” with a live view: the event-horizon shadow, a glowing accretion disk, the near side Doppler-beamed brighter, and the far side gravitationally lensed up and over the top. A cursor asks a follow-up and the view tilts edge-on live.