Hmm, let's see...
Fossil fuel will be almost out, therefore the prices will be high. By then, world would be more reliant on renewable energy sources, and therefore prices for such commodity will also be high.
World population would be so high such that there's not enough food to feed everyone, and famine and poverty would be rampart in third world countries.
Information would be more accessible since internet is more accessible everywhere. Mobile internet devices would be a need for almost everyone, and since IPv6 is in use, there would be almost no limit to the number of mobile internet devices produced every year. People would rely more on these devices as a way to connect with people and the rest of the world.
Libraries would be visited less often. Books in schools would be phased out. Appliances communicate wirelessly with each other, and are connected to the internet as well.
That's all I can think of for now, within five minutes of thought.
What do YOU think the world will be like in 50 years?
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