What is Deja Vu?

You know that feeling when you feel like you have lived a moment already? Well that’s deja vu (French for already seen) and apparently, it happens to over 60 per cent of people! But why? Is it a good thing or a bad thing? What is Deja Vu? For transcripts of this series, please visit: https://www.cbc.ca/radio/podcastnews/tai-asks-why-transcripts-listen-1.6747759