If you're 10 or 65 this is correct, but for anyone else the PC has not only been increasing in use but other parts of your life are filled with other computers.
Bitcoin is a waste of power. Mining gold, creating banks, printing money, these aren't wastes of power as the result is always something equivalent to said power. A bitcoin is just a bunch of 1s and 0s that takes 1ms to get, but wastes thousands of hours proving it.
Startup desperately begging for money and people obliging. Then they create an ad for their product out of it as if it's "some useful goss they researched".
I should make a useless startup. So many cheap tactics that people fall head over heels for.