I ran into him in The Future. Xah Toll aka ↑Xah Lee is a professional programmer who was brought to “↑Second Life“ (SL) by his friend Seifert Surface aka Stanford-mathematician ↑Henry Segerman. The latter is the creator of the famed ↵crooked house—which was a key motivation for ↵my coming to SL—, and of most of the stunning things in The Future. Xah himself is another of those math wizards, fond of the works of M.C. Escher, and creating things in SL that make you hanging on the edge of your seat. If you want to see unending symmetry tiles … Continue reading →