Makes sense - solar especially. It's just more financially smart to buy something that will generate electricity for 20-30 years with little to no maintenance than a plant that requires constant fuel, and is fairly complex mechanically with fluids and heat exchangers and turbines and so on. Panel efficiency keeps going up and prices keep going down, it's a snowball at this point.

Worth nothing that the "mirror test" may not be accurate for a lot of animals - like dogs. Dogs are a lot more sensitive to smell, and can pass smell-based mirror-test-equivalents.