For if we choose only to expose ourselves to opinions and viewpoints that are in line with our own, studies suggest that we become more polarized, more set in our ways. That will only reinforce and even deepen the political divides in this country.
But if we choose to actively seek out information that challenges our assumptions and our beliefs, perhaps we can begin to understand where the people who disagree with us are coming from.
— Barack Obama, presidente de EE.UU en un discurso en la U. de Michigan.
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