Yes, birth dates of themselves and family members, which are randomly distributed in the population, and which you can't possibly know, because you don't know the identity of other lottery buyers.
> or numbers that have won recently
Do people do this? I'd assume they do the opposite of this.
> or that form geometric patterns on the ticket, or that form interesting sequences, and so on.
This is all hand-waving. Please list the numbers that I shouldn't choose.
> those commonly picked sets of numbers
What are those numbers?
In any case, even if you eliminated several thousand numbers from the pool of possibilities, that doesn't really help you choose a specific set of numbers from the millions of possibilities, other than not those.