Humans after 50 years

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Hi there, I want all of you to express,suggest,comment say whatever they feel how humans beings will be after 50 years.For example- What will we eat and drink? How will this earth be? Will there be colonies in space? Will earth be colonised by aliens? Which countries will perish in wars? Will there be terrorism? Which country will be a superpower? how will humans stay-alone or in groups? Will there be marriages? which technologies will be more prominent? Will we be more or less happy? What will humans do for a living? Which will be top professions? How far will the concept of a "virtual world" be true? Will we live longer? Will humans be half robots? Will humans invade other frontiers in space and colonise other planets?