So, a one-time 52 to 48 percent [Brexit, Wikipedia article] popular vote is a solid basis for making massive economic, political, and social changes to the governance of the Not So United Kingdom and the larger European Union of 28 (at the moment) member states. Huh? Ain’t Democracy grand?!
Even tennis, baseball, soccer and basketball teams get to play more than one game to determine who wins.
We have much to learn from what happens next (and after that, and after that, …) and there will be an awful lot of discussion, hand-wringing, foreboding, fear, panic, etc. (Just like the lead up to our November 2016 elections!)
E.g. listen to the next Intelligence Squared debate: Brexit, What Next.
Other UK news sources will keep you well informed, too, e.g. BBC News, Times of London, the Guardian, (check both US and UK editions), The Independent (also both US and UK editions), and all the other UK newspapers (Wikipedia list).