Base58 and Base64 are like different alphabets for writing down the same secret note (your private key).

Base58 is Bitcoin's go-to – it skips similar-looking characters like 0/O and I/l to avoid mix-ups. It's user-friendly.

Base64 packs more into less space but can be trickier to tell apart, using all letters, numbers, plus a couple extra chars.

So it's about readability vs. compactness when picking your private key format! 🔑🧐