Have a look at the document. You'll find that if you apply his reasoning for why some predictions should be considered correct, they'd already have been true at the moment he made them. Predicting in 1999 that documents will routinely embed moving images? Truly a bold prediction to make during the golden age of the animated gif banner. Computers will exist the size of a thin book? Even if no technical progress at all had happened, he could just have pointed at a 1999 Palm Pilot or GSM phone.
He also marks things that are clearly failed predictions as "correct". For example he made the claim that most students and parents would have accepted for years that software is as effective as teachers. No. Way. But he marked that as "correct" with no relevant evidence at all.