Recently, Musk dropped a bombshell opinion on a podcast - Bitcoin is the "real currency."

His logic is quite interesting: "Bitcoin is essentially a currency based on physics," because mining requires energy, and "energy is the real currency; this thing cannot be created out of thin air by legislation." He also uses the Kardashev scale theory to support his point: the level of civilization's evolution ultimately depends on how much energy you can control.

What's bolder is his prediction for the future: once AI and robots handle all human needs, currency may lose its meaning. This reminds me of the post-scarcity era depicted in the science fiction series "Culture"—where everyone can have whatever they want, money? What's that?

But this brings up several questions worth pondering:
• Can energy truly become the ultimate measure of value?
• How far are we from a society that "does not need money"?
• What will be the positioning of Bitcoin in this transformation process?

To be honest, Musk's theory sounds very sci-fi, but when you think about the underlying logic of cryptocurrency, it doesn't seem completely unreasonable. What do you all think?