Evidence is key to 'knowledge'.

Decartes said 'I think therefore I am', this is talking about what anyone can 'know' (which is nothing except that they exist).

How do you know the sky is blue? Because you SEE it as blue, and you TRUST your eyes.

Look at the evidence at hand, not unfounded statements/guesses. Thats the best way not to look Ignorant.

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No Victim No Crime. Legalize.