If Microsoft made dive gear
Useless tips would show up on your dive computer every time you turn it on.
None of your new gear would be compatible with any of your old stuff.
When you called Microsoft to schedule a dive trip, you would be left on hold for a long time, and when you finally talked to someone you would be given a lot of information on diving that was absolutely correct but completely useless.
Every dive computer would be from Microsoft and any deaths from them would be explained as a "beta version" problems. Don’t worry, we’ll fix that in the next release.
Every time you were really close to your destination, your boat would crash.
Your air supply would stop and have to be restarted every couple of minutes and you would accept this as normal.