Can someone define data aggregation and explain how it works? or What exactly does 'define data aggre

"Hey everyone, newbie here!

Can someone define data aggregation for me? Like, in simple terms? I keep hearing about it but not sure what it *actually* means.

From what I gather, it’s basically collecting a bunch of data from different places and combining it into a summary? But how does that work in real life?

Also, why’s it so important? Seems like everyone’s talking about it.

Would love a quick breakdown—no jargon pls! 😅

Thanks in advance!"

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*P.S. If you’ve got examples, even better!*