Consider the example of the great song 'You Found Me', by The Fray.
The opening lines are:
I found God,On the corner of First and Amistad
The question occurred to me 'I wonder if that's a real place, and if so, where it is?'
Now, go back 30 years and this would be a very hard problem to solve. How do I search all the cities of the world (or just the US) for '1st and Amistad'. Even worse, what if there is no '1st and Amistad'? How do I ever verify that I've checked everywhere and that it actually doesn't exist?
Today, I just type in '1st and Amistad', and google maps directs me to an intersection in Quernado, Texas (which is the only suggested location). I'm also directed to Yahoo Answers, where some mentions that lead singer Isaac Slade actually made up the name, not knowing about the place in Texas.
It works, because I'm harnessing the power of the thousands of other people who've wondered the same question, thankfully some of them much more dedicated and knowledgeable than me. If all of them have searched and found nothing and written as much on the internet, it's not proof that the thing doesn't actually exist, but it makes for a reasonably good assumption.
I wonder if somewhere Zombie David Hume is reprising his argument about the problem of induction, while some Zombie modern teenager killed in a car crash is responding 'No, you just google "Are all Swans White", and it tells you the answer".'
Interesting times we live in.