https://tidecoin.org/Post-Quantum Cryptocurrency TDC

Regarding the issue of quantum computers, many people are concerned that once quantum computers are available, they will be able to crack Bitcoin (BTC) private keys. This possibility does exist; as early as 2017, industry insiders discussed this issue. For example, a popular domestic project at the time, Super Cash (HCash), also known as HSR (Red Braised Pork), proposed to create quantum-resistant electronic currency. An Australian cryptography professor also developed lattice-based quantum-resistant codes.
Of course, when considering this issue, if quantum computers really have this capability, then the concern is not just Bitcoin but the global financial networks and systems. Various information networks around the world would be at risk. This is akin to nuclear weapons; the potential threat is not just to the Bitcoin system, but to all of humanity, which is something that humanity must face. Many countries currently possess nuclear weapons, but they are strictly regulated, and quantum computers will likely be treated the same way.
Finally, from the perspective of energy conservation, quantum computers can indeed break encryption, but how much energy is required? Ultimately, it still comes down to the economic calculations.
In summary, worrying about this now is premature.