The world rejoices as this fungus is perfect for cleaning up nuclear waste products, until we realize that it evolved to function outside of Chernobyl and begins to eat everything it can reach. Mankind launches into a desperate struggle for survival as the fungus lays waste to large swathes of land.

The key is emissions, not energy use. If I have a process that benefits mankind (a global, decentralized, permissionless hard money that doesn't suffer from politics or unelected officials) and I am using 100% renewable energy, then there is no environmental cost.

Bitcoin mining is very cutt-throat. It is a bleeding-edge, hyper-competitive business of reducing margins. Because I only needs an energy connection, some HVAC and internet connectivity, miners are very mobile and can move from place to place after setting up shop somewhere. This means that they seek the absolute lowest energy cost (the difference of paying 1c more per kWh can be essential) means that they are the energy consumer of last resort. Hydrodams and other renewables often produce at moments that demand is lower, and having a bitcoin miner nearby that is willing to gobble up all your excess production means your solar farm or hydrodam suddenly makes a profit at most times of the day.

It also means that investors are more willing to invest in renewable energy in places where formerly, building this infrastructure was impossible. There is a village in Malawi, Afrika where building a hydro dam was possible, but not financially sensible. None of the villagers had electric appliances, so building the dam meant running it would not be profitable for a very long time. Now, you can just add a set of bitcoin miners and run the dam at 100% capacity until people start installing freezers, televisions, etc. This benefits the investors, the villagers, and the bitcoin ecosystem.

Bitcoin's environmental costs is a highly politicized complex puzzle that is hardly as negative as the mainstream media and anyone that hasn't researched it claims it is. It bothers me to no end.

The only thing that can change value is if the global hash rate significantly changes. This is why we have the difficulty readjustment every 2016 blocks (give or take 2 weeks).

Similarly for carbon fuels: these can have extremely high energy density coefficients, and are usable on a global scale. I would still prefer a move away from them and into Nuclear, but for some situations, having a small canister of fuel and a tool to convert that into mechanical action is extremely useful. Chainsaws for instance.

Also: I don't know what the tolerances for this material are, but they might be interesting for use in space?

Note that there is also a 'weight class' of black holes that are significantly large that their event horizon would be visible to the naked eye, but which don't have an accretion disk. We currently don't know enough to make scientific estimates on how many of each weight class exists.

It got a chuckle from our marketing department which caught the error before badges were printed for the very high-profile event we had planned for the next day.