> Later in 1982, I changed my F2L system to the current system. [..] By 1983, I was consistently averaging 17 seconds. I knew three more cubers capable of achieving sub-20 averages consistently. We practiced together. As the cube rage cooled down, I stopped working on my system.

Maybe she considers 1983 as the year speedcubing was born? Maybe she just meant round about 20 years. Maybe she wrote it in 2001 and published it in 2003?