The overall statement is a fallacy, correlation does not imply causation. There are plenty of good investment opportunities out there, the truth is that you need to find them yourself. The next big companies in the world are purely in their "unfunded idea" stage.
Also the whole tax reduction statement is mostly an opinion. From what I've seen, most companies are almost purely motivated by the risk-adjusted post-tax profit that can be obtained from the investment. Every idea on the drawing board is effectively evaluated meticulously on this basis. If that number isn't to their liking then the research/project simply never gets funded. The company might opt to simply do share buybacks or pay a higher than normal dividend. Plus the overall argument is mostly junk because the United States heavily reduces taxes for companies that perform R&D through the R&D tax credit.
1. “Plenty of good investment opportunities” does not treat their aggregate value compared to cash removed from the economy. I reiterate, in plain English. There is more of that cash, way more, than realistic investment opportunities. Don’t believe me? Look at the crazy vanity projects, either started or under consideration. Settlements on Mars. $500B Saudi cities.
2. “From what I've seen, most companies are almost purely motivated by the risk-adjusted post-tax profit that can be obtained from the investment. Every idea on the drawing board is effectively evaluated meticulously on this basis.” I couldn’t agree with you more, at least when it is done rationally. And precisely because taxation is MULTIPLICATIVE, tax rates have little effect on investment decisions. Look at the 1950’s. Indeed, I suspect, (paradoxically?) that high tax rates encourage investment. The investment cost is effectively discounted by the tax rate.
Cryptocurrencies add value to the economy. At the very least, it is a way for people to hold value into the future and plays a similar role to gold. Other cryptocurrencies can be used to buy/sell stuff.
For me personally, I stopped posting to my wall simply because I felt like it was a waste of time. Very few people actually liked it or responded to it, so why bother? Also the wall is now flooded with "sponsored content" which is just a nuisance if you ask me. The only thing left on facebook for me is basically the groups functions which has certain groups which are useful.
All of that could be covered in a seperate course. I think the author could probably conclude this html/css course by saying to learn all of those things you mentioned to put the website online.
Also with the crypto->crypto trades there are many exchanges that don't track anything. There are some that are completely decentralized and work based on using smart contracts. Who knows how the IRS is going to tackle that issue. It is very small segment of the overall market though.