Hint: Base64 Encoded

I got an answer here but it seems more like a clue?

`base64.decodebytes(b'RWluc3RlaW4ncy4')` tells me incorrect padding.

try https://www.base64decode.org/ instead

Einstein's.

I got this worth pointing out it's a clue not a solution

"relativity"

Man I tried all sorts of things including "theory of relativity" with and without "special" and "general" etc. Thanks!

:)

Not accepting that answer, what am I missing...

Same that's why I posted.

Thanks!!