That's only partly true. "Last mile" tubing is really expensive. It's cheaper to have the tubes run to a central depot and then load everything onto the truck, which is why the internet trucks still run today even though tube technology is commercially available. Unfortunately, this can result in an email being lost for several days if something goes wrong at the tube depot and it winds up on the wrong truck, or if you live too far from the tube.
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That's only partly true. "Last mile" tubing is really expensive. It's cheaper to have the tubes run to a central depot and then load everything onto the truck, which is why the internet trucks still run today even though tube technology is commercially available. Unfortunately, this can result in an email being lost for several days if something goes wrong at the tube depot and it winds up on the wrong truck, or if you live too far from the tube.