In 2013, TED published more than 250 talks, each with an idea worth spreading. And yet, certain ideas seemed to resonate throughout the year, as if speakers at different events were singing parts of the same choral symphony. As 2013 draws to a close, here is a look at some of the big ideas we parsed this year. Consider it the rousing finale to the year.

Humans and machines can work together to supersize growth.
At TED2013, Robert Gordon asked: Could it be that humanity’s greatest innovations are behind us? Economist Erik Brynjolfsson quickly countered, suggesting that if human beings can learn to “race with the machines” in the workplace, a major period of economic growth could be right in front of us. This idea ricocheted throughout the year: just this week, Marco Annunziata welcomed us to the age of the industrial internet, where smart machines that are…