My understanding of the code that makes crypto into “money” is very limited. I do understand that individuals using the tech have to give the concept of crypto it’s value by wanting to participate in the process. Processing the code requires computers and electrical power to “mine” the code across a global Internet. This type of activity relies on political stability in general with a global society that is stable enough to reliably provide the infrastructure needed to produce computers, support the Internet, and generate distributive (and reliability available) electrical power. If, however, the planet we live on is being dramatically altered by use of fossil fuels to support a infinite-growth economic system, then the prospects for global stability needed to support the concept of crypto becomes problematic. Perhaps this is somewhat true for all currencies, but I think crypto in particular will be unable to maintain any value in a chaotic world being universally impacted by extreme climate events, mass migrations, and military conflict (perhaps even nuclear). All areas of complexity that require an advanced society in order to be manifested will be challenged by the collapse of society as the ice caps melt, CO2 and methane in the atmosphere reshape the climate to a hothouse earth, and coastal flooding advances. Survival will require brutal simplicity.