Why must seat allocation be synchronized across nodes?

Seat allocation must be synchronized across nodes so that everyone knows where they're sitting, and no one ends up in the same spot at the same time.

Imagine you're playing a game with your friends, and there are only 10 seats. You all want to sit down, but if each of you thinks there are still plenty of seats left, because you’re looking at different lists, you might all end up trying to sit in the same seat, like a big pile-up!

That’s what happens when seat allocation is not synchronized across nodes. Each node (like a computer or a group of friends) has its own list, and if they don’t talk to each other, they can’t know who's already taken a seat.

If everyone just picks their favorite seat without checking with others, you might end up with confused kids sitting in the wrong place. It’s like playing hide-and-seek but not telling anyone where you hid, everyone ends up in the same spot!

So, by keeping seat allocation synchronized, each node knows what's happening everywhere else, and no one gets stuck in a messy pile of seats!