TIPS and i-bonds are limited in their role as a hedge. Sure, you are exactly compensated for inflation on the capital you invest. However, without the ability to have any leverage, you can't actually use this as a hedge against other capital which has exposure to inflation but which couldn't be converted.

This is the exact opposite of burning money. Your assessment whether bitcoin mining is wasteful or not is beside the point, the point is merely to unlock the economic value of stranded energy.

> So if there's a small amount of power, you get no yield from mining.

You are going in circles. The amount of mining you can do is exactly proportional to the available power. It does not suddenly go to zero. If the yield or profit is greater than the costs, it is economically worthwhile.

Could you explain how you arrived at this conclusion? The value of mining is generally proportional to the available power. If the capital expense of a mining rig is less than a transmission line, it might be better to mine than to transmit. For example, if it costs 1 million dollars to install a transmission line, but only 1 thousand dollars to setup a mining rig that could consume all the energy, it probably be more feasible to mine than to transmit.

a) good, because now twice as many miners actually solve a block, so instead of 99.7% waste it is 99.4% waste.

b) doesn't matter, because I just changed the unit of measurement-- each machine is just doing twice as much work.

c) doesn't matter, because bitcoin is already infinitely wasteful-- in which case pointing out that 99.7% of machines are somehow more wasteful than the other 0.3% does not make sense.

d) bad, for some other reason.

This misses the point that mining is probabilistic. Mining pools pay out based on the number of hashes tried, not the number of blocks solved. Your misunderstanding seems to be that the utility of something can be based on a probabilistic outcome. It is akin to saying that airbags are 99% (or whatever) wasteful because most of them aren't actually involved in a crash, and therefore 100x inefficient. You pay extra for a car with an airbag because it has value in the rare event you do have a crash it has immense value. Similarly, a mining pool would pay a single bitcoin mining rig to mine for years without it solving a single block, because the mining pool would realize the entire value if it did find a block, and so it pays out just under the expected value of this reward times the probability of the event happening.

Second, your argument ignores the fact that the unit of a "mining machine" is completely arbitrary. If mining machines were on average 2x larger and more powerful (but there were half as many of them), then by your argument bitcoin mining would be 2x less wasteful. That makes zero sense.

By this logic we should remove airbags from cars also-- the vast majority of airbags just cost money to manufacture and don't ever expand or save a life, ending up in landfills unused.