References: [1] https://en.wikipedia.org/wiki/Relativity_(M._C._Escher) https://en.wikipedia.org/wiki/Relativity_(M._C._Escher) [2] http://www.npr.org/section

References: [1] https://en.wikipedia.org/wiki/Relativity_(M._C._Escher) https://en.wikipedia.org/wiki/Relativity_(M._C._Escher) [2] http://www.npr.org/sections/money/2016/08/03/488611449/episode-715-the-sewing-robot http://www.npr.org/sections/money/2016/08/03/488611449/episo... [3] Maslow’s hierarchy of needs – by FireflySixtySeven [4] A theory of Human Motivation – http://psychclassics.yorku.ca/Maslow/motivation.htm http://psychclassics.yorku.ca/Maslow/motivation.htm