The Sign of the
Double Cross

Scott Carnahan at Secret Blogging Seminar, December 14, 2007:

“… my advisor once told me, ‘If you ever find yourself drawing one of those meaningless diagrams with arrows connecting different areas of mathematics, it’s a good sign that you’re going senile.'”

Steven Cullinane at Log24, May 19, 2004:

Eight-point diamond-theory star, May 19, 2004

Google search, May 17, 2009:

Eight-point star of Google diamond-theorem search, May 17, 2009

Related material:

Log24, Feb. 16, 2008