Tachyon01 is a Wikipedian from the west coast of the United States, specifically from Santa Cruz, California. He is a mathematician who regularly beats his head against the wall while researching. His primary role on Wikipedia is fighting vandalism. Currently, he is involved with a number of projects and articles. He is actively involved space/astronomy articles including 2003 UB313, Definition of Planet, and Trans-Neptunian Object. He also contributes to the Wikiversity School of Mathematics, where he is teaching two courses: Introduction to Proofs and Introduction to Abstract Algebra.

An avid ice hockey fan, he regularly contributes to the San Jose Sharks article.

Tachyon01 has his e-mail enabled; however, he requests certain steps be taken. He checks his inbox far less often then his talk page, so any e-mail should ideally be accompanied by a message on the talk page. Unless there's something that needs to be private, please use the talk page. He tries to read his E-mail regularly for mail, but if he does not reply, he apologizes in advance. If you do send an email, make sure "Wikipedia" is in the subject line.