I clicked on it thinking it was about this: https://en.wikipedia.org/wiki/Gelfand%E2%80%93Naimark%E2%80%93Segal_construction https://en.wikipedia.org/wiki/Gelf

I clicked on it thinking it was about this: https://en.wikipedia.org/wiki/Gelfand%E2%80%93Naimark%E2%80%93Segal_construction https://en.wikipedia.org/wiki/Gelfand%E2%80%93Naimark%E2%80%... Oh well, still interesting.