NOTE: The references are currently out of date and will be revised shortly
Wikipedia, 2017
ThoughtCo, 2017
Fortune, 2017
University of Cambridge, 2012
Wikipedia, 2017
Timpson, Christopher G., 2004
Wikipedia, 2017
Wikipedia, 2017
MIT Technology Review, 2015
MIT Technology Review, 2016
Google, 2012
The Guardian, 2016
David Deutsch, 2011
Fox News, 2013
The Week, 2017
Wikipedia, 2017
The New York Times, 2017
Harari, Yuval, 2014
Wenger, Albert, 2013
Malthus, Thomas Robert, 1798
Woodburn, James, 1982
Wikipedia, 2017
Politico, 2017
How Stuff Works, 2017
Mayo Clinic, 2014
U.S. Department of Health and Human Services and U.S. Department of Agriculture, 2015
Wikipedia, 2017
Worldometers, 2017
Roser, Max and Ortiz-Ospina, Esteban, 2017
Holt-Lunstad, Julianne; Smith, Timothy B.; Layton, J. Bradley, 2010
Roser, Max, 2016
Wikipedia, 2017
Roser, Max, 2016
Roser, Max, 2016
Roser, Max, 2016
National Public Radio, 2010
Yahoo! Finance, 2013
Quote Investigator, 2011
The Economist, 2016
Kilby, Emily R., 2007
Leontief, Wassily, 1952
Quartz, 2016
Forbes, 2015
The Next Web, 2013
Social Media Today, 2017
Inglehart, Ronald and Norris, Pippa, 2016
Gilens, Martin and Page, Benjamin I., 2014
The Guardian, 2012
Scientific American, 2016
BBC, 2014
NASA, 2015
WikiQuote, 2017
Constructor Theory, 2016
Wikipedia, 2017
The AP-NORC Center for Public Affairs Research, 2016
GoBankingRates, 2016
Board of Governors of the Federal Reserve System, 2016
Paine, Thomas, 1797
Rohde, Robert A. and Muller, Richard A., 2015
U.S. Department of Commerce Bureau of the Census, 1949
U.S. Department of Commerce Bureau of the Census, 1948
Bureau of Economic Analysis, 2012
Additive Manufacturing, 2017
Additive Manufacturing, 2017
Apis Cor, 2017
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Greybeard Rentals, 2017
The New York Times, 2017
The Atlantic, 2016
Center for Medicare and Medicaid Services, 2015
Wired, 2015
) {#ref-STAT2}
Statista, 2017
the U.S. Population: 2014 to 2060 p. 2-4](https://www.census.gov/content/dam/Census/library/publications/2015/demo/p25-1143.pdf) {#ref-CENS3}
U.S. Department of Commerce Bureau of the Census, 2017
The World Bank, 2016
) {#ref-STAT3}
Statista, 2016
Federal Reserve Bank of St. Louis, 2017
Department of the Treasury, 2016
National Priorities Project, 2016
Zero Hedge, 2017
Quartz, 2017
Forbes, 2017
MarketWatch, 2017
CBS News, 2001
Internet Live Stats, 2016
Open Technology Institute, 2014
Federal Communications Commission, 2010
Wikipedia, 2017
Bambauer, Derek E., 2009
Wenger, Albert, 2017
Wenger, Albert, 2017
W3C, 2017
Crain's New York Business, 2015
Nipps, Karen, 2014
Hornick, John F., 2003
Senate and House of Representatives of the United States of America in Congress, 1998
Kilmer, Anne Draffkorn, 1971
The Recording Industry Association of America, 2017
Johnson, Steven, 2015
Bloomberg, 2017
ZoomInfo, 2017
LinkedIn, 2017
Wikipedia, 2017
infojustice, 2013
Forbes, 2017
Science Exchange, 2017
Centers for Disease Control and Prevention, 2017
Longitude Prize, 2017
The New York Times, 2017
Reuters, 2017
Naked Security, 2015
Transparent Blog, 2013
Information is Beautiful, 2017
The New York Times, 2016
Skidelsky, Robert and Skidelsky, Edward, 2012
Orlo Salon, 2017
The Influence, 2016
Masa NYC, 2017
The Telegraph, 2013
van Alstyne, Marshall and Brynjolfsson, Erik, 2005
Pariser, Eli, 2012
Soroush Vosoughi, Deb Roy, Sinan Aral, 2018
Wenger, Albert, 2011
MIT Media Lab - Medium, 2015
Wikipedia, 2017
United Nations DESA / Population Division, 2017
The World Bank, 2017
UN IGME, 2017
Federal Reserve Bank of St. Louis, 2017
Federal Reserve Bank of St. Louis, 2017
Federal Reserve Bank of St. Louis, 2017
Federal Reserve Bank of St. Louis, 2017
Centers for Disease Control and Prevention, 2017
Substance Abuse and Mental Health Services Administration, 2015
Federal Reserve Bank of St. Louis, 2017
Bureau of Labor Statistics, 2017
Bureau of Labor Statistics, 2017
The World Bank, 2017
Federal Reserve Bank of St. Louis, 2017
National Human Genome Research Institute, 2017
Trenberth, Kevin E and Smith, Lesley, 2003
UCAR Center for Science Education, 2011
UCAR Center for Science Education, 2008
NASA Space Science Data Coordinated Archive, 2016
National Oceanic and Atmospheric Administration, 2010
BASF Corporation, 2012
The USGS Water Science School, 2016
University of Michigan Health System, 2015
The World Bank, 2014
How Stuff Works, 2010
Statista, 2009
The World Bank, 2016
Hunger Math, 2012
Hunger Math, 2012
United States Department of Agriculture, 2015
Business Insider, 2016
Moura, Maria Cecilia; Smith, Steven; Belzer, David, 2015
American Housing Survey, 2013
Federation of American Scientists, 2014
European Environment Agency, 2014
Statista, 2015
Fashion United, 2012
Newsweek, 2015
Just Style, 2015
U.S. Department of Transportation, Bureau of Transportation Statistics, 2015
ARK Invest, 2014
Statista, 2015
Roser, Max, 2016
International Data Corporation, 2015
World Economic Forum, 2017
EcoWatch, 2017
Hassabis, Demis; Silver, David, 2017
Jedlicka, Peter, 2017
Guardian, 2016