It's not "we know nothing." It's "we have low confidence in this thing." Which is exactly what you should be willing to say if you want an accurate view of the

It's not "we know nothing." It's "we have low confidence in this thing." Which is exactly what you should be willing to say if you want an accurate view of the world. You can take action of knowing something with low confidence, you just make sure it's not too extreme, and it's not incompatible with being wrong.