This talk was presented at the monthly "Disbelief Discourse" on the campus of the University of Central Oklahoma. This event is co-hosted by the UCO Skeptics and the Oklahoma Atheists.
Dr. Caleb Lack (http://www.caleblack.com/) presented "Why We Can't Trust Our Brains." Despite the fact that the human brain is one of the most amazing and complicated objects on Earth, it is flawed in a number of very specific ways that impact your ability to critically analyze the world around you. Understanding these flaws, though, is the first step to overcoming them.
Dr. Lack is a professor and clinical psychologist at the University of Central Oklahoma. Over the past six years he has published close to three dozen scientific articles, book chapters, and books, as well presenting at numerous national and international conferences. Dr. Lack serves on the editorial board of several peer reviewed journals and has consulted for and been interviewed by local, national, and international media outlets. A native Oklahoman, Dr. Lack grew up in the rural community of Mountain View, where his parents still reside and farm and ranch on land that has been owned by the family for close to 100 years.
In addition to courses on his clinical and research specialties in the anxiety disorders and evidence-based psychological practice, Dr. Lack also teaches undergraduate and graduate courses on critical thinking, science, and pseudoscience. These recently culminated in the edited, online text Science, Pseudoscience, & Critical Thinking (http://pseudoscience.wikispaces.com/) as well as a series of documentaries on pseudoscience and superstition in Oklahoma (http://www.youtube.com/playlist?list=PL901B64AEDCC82A82&feature=mh_lolz). Dr. Lack is also the founding advisor of the UCO Skeptics (http://www.caleblack.com/ucoskeptics/index.html), a university campus group dedicated to reason and scientific skepticism in all areas of life.
Follow updates on science and skepticism at http://www.facebook.com/ProfessorCalebLack
This site provides links to random videos hosted at YouTube, with the emphasis on random.
The original idea for this site actually stemmed from another idea to provide a way of benchmarking the popularity of a video against the general population of YouTube videos. There are probably sites that do this by now, but there wasn’t when we started out. Anyway, in order to figure out how popular any one video is, you need a pretty large sample of videos to rank it against. The challenge is that the sample needs to be very random in order to properly rank a video and YouTube doesn’t appear to provide a way to obtain large numbers of random video IDs.
Even if you search on YouTube for a random string, the set of results that will be returned will still be based on popularity, so if you’re using this approach to build up your sample, you’re already in trouble. It turns out there is a multitude of ways in which the YouTube search function makes it very difficult to retrieve truly random results.
So how can we provide truly random links to YouTube videos? It turns out that the YouTube programming interface (API) provides additional functions that allow the discovery of videos which, with the right approach, are much more random. Using a number of tricks, combined some subtle manipulation of the space-time fabric, we have managed to create a process that yields something very close to 100% random links to YouTube videos.
YouTube is an American video-sharing website headquartered in San Bruno, California. YouTube allows users to upload, view, rate, share, add to playlists, report, comment on videos, and subscribe to other users. It offers a wide variety of user-generated and corporate media videos. Available content includes video clips, TV show clips, music videos, short and documentary films, audio recordings, movie trailers, live streams, and other content such as video blogging, short original videos, and educational videos. Most content on YouTube is uploaded by individuals, but media corporations including CBS, the BBC, Vevo, and Hulu offer some of their material via YouTube as part of the YouTube partnership program. Unregistered users can only watch videos on the site, while registered users are permitted to upload an unlimited number of videos and add comments to videos. Videos deemed potentially inappropriate are available only to registered users affirming themselves to be at least 18 years old.
YouTube and selected creators earn advertising revenue from Google AdSense, a program which targets ads according to site content and audience. The vast majority of its videos are free to view, but there are exceptions, including subscription-based premium channels, film rentals, as well as YouTube Music and YouTube Premium, subscription services respectively offering premium and ad-free music streaming, and ad-free access to all content, including exclusive content commissioned from notable personalities. As of February 2017, there were more than 400 hours of content uploaded to YouTube each minute, and one billion hours of content being watched on YouTube every day. As of August 2018, the website is ranked as the second-most popular site in the world, according to Alexa Internet, just behind Google. As of May 2019, more than 500 hours of video content are uploaded to YouTube every minute.
YouTube has faced criticism over aspects of its operations, including its handling of copyrighted content contained within uploaded videos, its recommendation algorithms perpetuating videos that promote conspiracy theories and falsehoods, hosting videos ostensibly targeting children but containing violent and/or sexually suggestive content involving popular characters, videos of minors attracting pedophilic activities in their comment sections, and fluctuating policies on the types of content that is eligible to be monetized with advertising.