andrew, thanks for the link.
I think it's a blog-tool-fail, but the code is corrupt as posted. I can't even figure out the intended code, due to the mangling. I expect it broke because there were some && in the code itself.
for (i = 0; i < j =" j" steeringzero =" analogRead(steerPin);" xzero =" j/100;" oldtime ="
micros();" time =" micros();">= (oldtime+5000)){
Others have left comments for the author to highlight the problem, but I found no public response to the problem. Too bad they have also removed their demo videos.