william stein joints me now. media you were coming on the program, many people pointed out that the version of fst that you were using was 12.3.6, not the latest 12.5 which rolled out last friday in a limited release over the weekend. give me the basics of the test you conducted, where you conducted it, who is tesla you were using, the parameters around it, please. william: thanks for having me. the test initially after the q1 earnings report and the q2 report were done under very similar conditions. sunny, dry, easy to see, easy to operate. this was a tesla-owned car. i approached tesla as if i were any other potential buyer. i went to a show room, signed up, plugged in a relatively local address seven miles away from the show room, near to where i live in suburban new york city. that was the set up. it mostly worked well in both cases. ed: when did this test take place? william: the first one i tried was right after q1, when musk first issued this directive to investors, potential investors that they must see t