Well, for starters, Bitcoin would need to become widely accepted as a legitimate form of currency, which means overcoming regulatory hurdles and gaining trust from governments and institutions. Additionally, it would need to become more stable in value and have a more efficient transaction process. And let's not forget about the fact that it would need to compete with other global currencies, like the US dollar and the Euro. So, in short, it's not an easy feat, but it's not impossible either.