Tony Quan a.k.a. Tempt One (graf­fiti writer, pub­lish­er, and act­iv­ist) was dia­gnosed with ALS (Lou Gehrigs dis­ease) in 2003, and is now almost com­pletely para­lyzed, des­pite hav­ing full men­tal fac­ulties. Enter the Not Impossible Found­a­tion and their new Eye­writer pro­ject. They pro­grammed cus­tom, open-source free­ware that can track eye move­ments, allow­ing Quan and oth­ers to write and even draw using only an eye, a com­puter, free soft­ware, and about $50 in parts (includ­ing a mod­i­fied Play­Sta­tion Eye).