We may never know where the bottom is, but we surely know where the dip and the correction is taking place.
And as you said - it would be good points of entering, but there would be no ideal points due to what I described above.
No, we don't but we don't have to confuse because as long as we can buy at a low, that will be a good place to buy.
We must always analyze before decide so we know the best time to buy. If the price drops, people panic and they can't think if that is a good time to buy so they should analyze to find their position to buy.