You should definitely not trust any random neighbours with or without a "science degree" (wut) on much of anything, but especially facts and figures, even if they aren't just making shit up - which you should assume they are if you're not that gullible - the brain is terrible at remembering specifics, and you should absolutely look it up on the internet, which has extremely easily accessible written information, i.e. Wikipedia, where it's validity is established by the same means that the scientific method ultimately establishes knowledge - consensus.
The only thing I'd trust my neighbours on is their bloodlust towards anyone and everyone who isn't literally them and especially those different enough where they can bend their empathy driven pretense of morality, and that they would do anything for their share of the pie.