Left to right, front to back, usually. Except when I don't and I read right to left and/or back to front. Or even start in the middle and read both ways. I can also read upside down and from the side. I can also read the front side of a page from the back if the type on the front shows through.

I don't remember when I could NOT read. Whether it was comic books (which I agree is the best thing to teach reading!) or REAL books withOUT pictures and LITTLE BITTY print I would read it (as would my siblings and parents). More, we could comprehend what we read.

As for that computer program -- heck, we had a projector in high school back in 1960 that did the same thing. It only went up to 1600 wpm though and I (and most of my classmates) read faster than that.