A CPU from 2017 is going to run your programs a hell of a lot faster than one from 2003. Even if they technically have the same clock speed. Look at benchmarks for instance: https://www.cpubenchmark.net/high_end_cpus.html
Also a 30% decrease is also equivalent to setting Moore's law back 7 months. A 5% loss is only setting it back 1 month. I know that's a bit of a naive calculation. But the point is computing power has long operated in an exponential domain. So big differences in absolute numbers aren't necessarily a big deal.
This has little to do with the study in question. It wasn't about weird metaphysics, it was that MRI scans could predict what choice people would make, before they reported making a choice. Showing that the unconscious mind makes choices before our conscious mind is even aware of it. I don't think this result is affected by this new issue, because it seems to have been done with old fashioned EEGs too.
This adds to other work from split brain patients, that our right brain explains away the choices we've made even if those explanations are totally false. E.g. they ask the left brain to pick up a toy soldier, and ask the right brain why they did that. They say "well because I always liked toy soldiers when I was a kid", or some other made up explanation. There's even cases where one side of the brain is paralyzed and can't move its arm, and the other side makes up explanations why it doesn't want to move its arm and refuses to believe it's paralyzed.
I think it's possible humans don't have Free Will. Not just in a philosophical, or determinism vs nondeterminism sense, but in a very practical sense. That our actions are highly predictable. And that once you start to see the inner workings of the machine that is our minds, it starts to seem a whole lot less magical.
This intuition is hard to explain, but in general many systems seem to have "agency" until you understand how they work, and then they start to seem just like normal "non agency" things. As we learn more about how humans work, we start to look a lot less agenty. More on that here: http://lesswrong.com/lw/mb0/agency_is_bugs_and_uncertainty/
The argument against direct democracy is that the population isn't very informed. Not necessarily that they are selfish.
Even in the US, voters often tend to vote against their own self interest. E.g. people that stand to benefit from social programs often vote for conservatives against social programs.
I wouldn't do it, on the other hand it proves it's entirely luck what submissions make it to the front page. Your post can be pushed down and get no attention just because a bad dice roll.