UNANSWERED QUESTIONS MEGA-COLLAB: http://youtu.be/UFydagCS9fg Follow me: http://www.twitter.com/tweetsauce LINKS/SOURCES: music by: http://www.youtube.com/user/jakechudnow/ song at end: "Pious Reflection" by Paul Mottram downloaded from http://www.audionetwork.com/ it's on YouTube: http://www.youtube.com/watch?v=1kszd5IGq_k Human senses: http://science.howstuffworks.com/life/question242.htm http://en.wikipedia.org/wiki/Sense Color illusion: http://loriputnampaints.blogspot.com.es/2010_03_01_archive.html Audio illusion: https://www.youtube.com/watch?v=u9VMfdG873E temperature illusion: http://exs.exploratorium.edu/exhibits/hot-and-cold/ Tactile illusions: http://en.wikipedia.org/wiki/Tactile_illusion epistemology wiki pages: http://en.wikipedia.org/wiki/Epistomology http://en.wikipedia.org/wiki/Knowledge http://en.wikipedia.org/wiki/Theory_of_justification proof: https://en.wikipedia.org/wiki/Proof_(truth) http://thesaurus.com/browse/proof a priori truth [pdf]: http://consequently.org/papers/apriori.pdf http://en.wikipedia.org/wiki/A_priori_and_a_posteriori_(philosophy) rotating brain gif: http://lcni.uoregon.edu/~dow/Space_software/Space_animations/rotating_brain.gif neuroscience of memory: http://www.sciencemag.org/content/309/5731/92.full http://en.wikipedia.org/wiki/Neuroanatomy_of_memory http://www.extremetech.com/extreme/123485-mit-discovers-the-location-of-memories-individual-neurons http://www.brainfacts.org/sensing-thinking-behaving/learning-and-memory/articles/2012/storing-memories/ LTP: http://www.youtube.com/watch?v=pwp5sfsy-hI http://www.expertsmind.com/topic/neuroscience/long-term-potentiation-93811.aspx engrams: http://brainsandcognition.wordpress.com/2011/05/25/the-ever-elusive-engram/ storage of human brain: http://www.scientificamerican.com/article.cfm?id=what-is-the-memory-capacity SKYentists: https://twitter.com/nice_mustard/status/339767730230157312 philosophy of science: http://en.wikipedia.org/wiki/Constructivist_epistemology The Matrix defense: http://www.boston.com/news/globe/ideas/articles/2003/11/09/the_matrix_defense/ http://en.wikipedia.org/wiki/The_Matrix_defense solipsism: http://en.wikipedia.org/wiki/Solipsism http://philosophynow.org/issues/57/How_Can_I_Know_Anything_At_All http://onlinephilosophyclub.com/forums/viewtopic.php?f=2&t=10 Martin Gardner books: http://bit.ly/19CvvoG http://amzn.to/Zou74W why cats like keyboards: http://kotaku.com/5991046/why-cats-love-sitting-on-keyboards