Let's be real about Bitcoin's challenges. The energy consumption issue keeps coming up for good reason—it's resource-intensive compared to modern payment systems. Then there's the speed problem; transaction times lag significantly behind traditional financial rails. Price volatility? That's the elephant in the room for anyone thinking about actual payments rather than speculation. Add in the regulatory fog hanging over the whole space, and you've got a system that's revolutionary in concept but facing serious practical hurdles. These aren't FUD talking points—they're real limitations worth acknowledging if we're serious about mainstream adoption.