No lo se?
In the sentence "no lo se" why is lo in the sentence?. and also what does lo mean anyway?
In English the direct object "it" is implied and we don't explicitly say or write it.
It's just understood that there is something that we don't know.
Right, which is correct as well. This could be "I don't know him" as well.
Wouldn't "I don't know him" be "No lo conozco?" My understanding is that Spanish differentiates between knowing information and knowing people.
You're correct, my bad. I was going based off of lo meaning him. You are correct.
Right you are. I neglected to put "him". "Lo" can mean it or him, as you aptly said in your better-answer-than-mine :D
I do not know him/it. No lo SÉ.
Lo is a direct object pronoun, which can mean him or it. You put it before the verb, so the literal wording is, "No him I know."
Yes, Spanish differentiates between knowing information and knowing people.