Interesting. Good on you for actually looking in to how economics is supposed to work. Maybe you’d be interested in this, if you haven’t heard about it already?

On climate change, in Canada, we have a carbon tax, but it’s still lower than the actual social price of emissions. And the current frontrunner for next election has made scrapping it his whole platform, sadly. I don’t know much about high-frequency trading, but I’ve kind of just assumed it’s the same but faster. There are startups, I know that, so it’s not a total monopoly. There was one that was using shortwave to pass along information with tiny latency.