Ninety percent of the time things will turn out worse than you expect. The other 10 percent of the time you had no right to expect so much. The early bird gets the worm. The more one produces, the less one gets. Simple systems are not feasible because they require infinite testing.
Hardware works best when it matters the least.
Aircraft flight in the 21st century will always be in a westerly direction, preferably supersonic, crossing time zones to provide the additional hours needed to fix the broken electronics. A billion saved is a billion earned. Two-thirds of the Earth's surface is covered with water. The other third is covered with auditors from headquarters. The more time you spend talking about what you have been doing, the less time you have to spend doing what you have been talking about.