That's an interesting theory knk! I'm very tempted to run another experiment just to give it a little test I get disappointed when I find out it's just random because it's much more interesting to figure out a little algorithm.

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In my family of 3, they each had their own preferred spot to sit on, the parents being on the short end of the table and their son on the long end. They all have the same amount of hunger. The son finished eating significantly faster than the parents

In my larger family, two of the boys prefer the empty seat, so I put one of them on the spot and the other boy went to the seat next to it. This time the longer end of the table finished their food quicker.