Whereas you would previously (for your first example) have a conversation with the guy at the video store and he'd not only tell you the movie but also recommend something else you might like.
As we're detached, let me say that ycombinator used to be a place that attracted the best of the best. One could come here and talk to people who knew their shit and had something to say.
Normal physical processes are not deterministic. You don't need to speculate on a source of non-determinism, it's right there in the substrate. Penrose's entire argument is based on a fallacy (you need quantum effects for a system to be non-deterministic) and we've known this since the double-pendulum.
If you're the kind of person who goes to the comments first, I'm here to tell you there's no need to read the article. Just say "bossware" to yourself 10 times.