I think that on Earth in 500 years will change much. Instead of normal machines, I will be flying machines. In space we will be able to walk already on foot, without rockets and satellites. The computer will replace any super powerful smartphone. Money will be only on cash cards. By then will organize life on Mars and on the Moon. That we eat and we drink becomes other. Robots and machines will work at plants and the enterprises only.
I think that on Earth in 500 years will change much. Instead of normal machines, I will be flying machines. In space we will be able to walk already on foot, without rockets and satellites. The computer will replace any super powerful smartphone. Money will be only on cash cards. By then will organize life on Mars and on the Moon. That we eat and we drink becomes other. Robots and machines will work at plants and the enterprises only.