I don't understand much about a lot of things

But is it true that some tech giants control part of the internet

So let's say GM vechicles run on some sort of computer

An example I can relate to

Our farm can look at our phone and monitor our drier set up for various functions

So let's say twitter and the other tech giants decide that GM is a competitor or they simply don't like GM

Could these tech giants disrupt the operation of GM products if they so chose??

Today we don't have one machine that is run by an engine that doesn't have a computer some place

I had one time when I had to get a technician to completely re-program our computer in a tractor before it would start

We have had multiple times of computer mal function and engines either don't start or run improperly

Can silicon valley mess with our machinery if John Deere or any machinery that uses computers to operate, has a argument with Silicone Valley