Could we be wrong about everything?

[John Cuthber]

"Could we be wrong about everything?"
Not any more.

Not since you, or someone, asked that question.
Imagine that we were wrong about everything.

If that was the case then one thing we would need to be wrong about was our belief that we were right about things

In that case, saying "I am not sure about knowing everything" would be right.
In order to ask the question in the thread title, you need to realise that there's doubt and, in that case, having doubt would be the right thing to do.

 

[MSC]

3 hours ago, dimreepr said:

Sometimes we, philosopher's, overthink things...

Sometimes others underthink things.