Want me to actually simulate the 20 spins via text animation? I can do a quick ascii or rolling visual for fun.

If you try this with Google’s trick (search the phrase), it rolls once. To get 20x, you’d need a script or sheer manual clicking on a barrel roll button — which some fan sites have made. After 5 rolls, most people lose track of orientation. After 10, nausea. After 20? You’ve earned a digital pilot’s wings… or a trip to the virtual bathroom.

A real barrel roll at 300 knots takes ~3–4 seconds. 20 rolls = ~60–80 seconds of continuous rolling. At 1.5–2 Gs sustained, blood rushes from your head. Verdict: Not impossible, but highly impractical — and you’d need aerobatic clearance, a sturdy plane, and an iron stomach.