There will be a maximum of 1 billion people on Earth. No one's gonna work. Artificial intelligence will be on such a level that there will be no need to think about anything at all. Water as we know it today will not exist. The human body will not need it. Just like any food. Fully enough with a morning charge of about 2-3 seconds. The bloodstream will function as an electrolyte. We will move with machines that will fly. All transportation will be environmentally friendly and in the atmosphere. Reproduction will no longer be such a delight. The age of each person will be determined in advance in order to maintain balance. Any conflicts between people, between nations will disappear, people will be able to educate themselves individually, but only to a certain level.