There are some in Luxemburg also, which the source doesn’t seem to know about. I.e. the data seems very outdated, or somewhat random.

Trains can cross borders

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The way you phrased it is not quite what the study says.

They’re not “25% likely of not divorcing” (which would mean there’s a 75% chance of divorce).

They’re “25% less likely of divorcing”

Because you’d be constantly changing your volume up and down slightly while scrolling.

Where do you get a Bluetooth damp cloth?