ibm invented a tiny tracking device in the early1980s. the scientists at ibm tested it by putting it in a package, and sending it via fed_ex to another ibm office in the same city. fed-ex is very wasteful taking all packages to atlanta for sorting, and then flying them out to their destination overnight.  the test tracked the package as it went from their office, was flown to atlanta, then flown to the city it came from, and was delivered to the destination. the fed-ex driver could have dropped the package off at it's destination which was on his route, and delivered it within minutes of picking it up.     dust that was over 40 years ago.
United States