Can a being know if It knows everything?

[the2real4mafol]

MDMAlliance said:

the2real4mafol said:
I don't think it's possible to know everything there is to know, as we discover new things all the time. I think, the brain can only so much information, then after that, older knowledge is pushed away by the newer knowledge

We're not talking about humans, though.  We're talking about "beings" as in there are no limitations since this is purely hypothetical.

Oh I didn't realise sorry. In that case then, it's possible. I'm almost certain there are smarter and better "beings" out there somewhere, but even they  must have some sort of limit to something