Stratonauts, ascending in a cloudy layer in a balloon, said that they could not understand in any way – the balloon was rising

Stratonauts, ascending in a cloudy layer in a balloon, said that they could not understand in any way – the balloon was rising, falling or hanging in place. And why?

it is impossible to assess whether the ball is moving or not, because the fog is the same everywhere, but the earth is not visible.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.