Is knowledge humanly possible? In this Wireless Philosophy video, Jennifer Nagel (University of Toronto) looks at skeptical arguments, starting with Ancient Greek and Chinese philosophy, and moving forward into contemporary brain-in-a-vat scenarios. We’ll review a variety of reasons to worry that knowledge might be impossible, and we’ll examine the difference between global and local forms of skepticism. Subscribe! http://bit.ly/1vz5fK9 More on Jennifer Nagel: http://bit.ly/1PLgDZZ ---- Wi-Phi @ YouTube: http://bit.ly/1PX0hLu Wi-Phi @ Khan Academy: http://bit.ly/1nQJcF7 Twitter: https://twitter.com/wirelessphi Facebook: http://on.fb.me/1XC2tx3 Instagram: @wiphiofficial ----