If you look at the whole list, the predictions aren't terribly bad. I think the main problem is that they are far too concrete--Kurzweil got the gist of trends in electronics. He should have simply stated the trends he sees that justified the predictions he made. Then, instead of these obviously flawed predictions, he would have some worthwhile observations about trends in consumer electronics.
I don't know about the "Luddite movement" prediction, though. He should leave those kind of predictions to the social scientists.
You may want to consider Amphetamine. It worked wonders for me.