Re: [math-fun] universe as doughnut

this seems to be a link to a proprietary service. could you tell us what it's about? thanks!

- hvm

Apologies. Once you've registered, you're no longer required to log in (it uses cookies) so I often forget about that. I don't believe I'm getting any spam because of the NY Times knowing my email address, so I think it's worth going through the fairly painless process for access to their articles. The article has already been summarized here, so I'll avoid being redundant. Shel