Imagine a scenario: the summer of 2025, a record-breaking global heatwave. Many places are unbearably hot—cash-in-transit vehicle tires start melting, ATMs overheat and break down, and banknotes in warehouses are either scorched or moldy due to humidity. It sounds like science fiction, but on the other hand, it highlights the fatal flaw of physical currency: having a physical form means it cannot escape the various ravages of the physical world.

What about purely digital stablecoins? For example, USDD 2.0, which has none of these worries. It is just a string of code on the blockchain, stored across distributed nodes. Not afraid of fire, water, or high temperatures. As long as the network is alive, it remains intact forever. For people in harsh climate regions, this is a huge advantage.

And then there’s the cost issue. Traditional banking systems see costs skyrocket in high-temperature environments—massive air-conditioned vaults, large cash-in-transit teams, all burning money to maintain operations. What do banks do in the end? They raise transaction fees.

But USDD is backed by Tron, which uses the DPoS consensus mechanism—famous for its high efficiency. Transfer energy consumption is extremely low. The saved costs are directly passed on to users—cheaper usage costs, higher yields. In a resource-constrained future, this "green advantage" will become increasingly valuable.

In short, as physical world constraints become more severe, the flexibility and resilience of digital assets become especially precious.