H.I. #23: Call of the Postbox @HelloInternetPodcast

Uploaded May 2015 | Updated September 2026, 2 weeks ago

Subscribe to the Podcast: goo.gl/CemLaj
Grey: youtube.com/user/cgpgrey
Brady: youtube.com/user/numberphile

Grey and Brady discuss selfies at the world series and on the moon, driving on the right wrong side of the road, Brady's new subreddit: reddit.com/r/bradyharan, death by electricity, how to steal a 747, livetweeting rules, the event horizon of mail, the worst of both worlds, wallets, the worst city in the civilized world, Nobel laureates vs million-subscriber YouTube channels, forgetting what we've talked about, Grey switching to android, train travel, a mile of pi, and being a secret billionaire.

The most minor of spoilers for 30 Rock: amazon.com/gp/product/B000RBA6CO/ref=as_li_tl?ie=UTF8&camp=1789&creative=390957&creativeASIN=B000RBA6CO&linkCode=as2&tag=hellinte-20&linkId=RCVZTR6YEFD2WYM6 and The West Wing: amazon.com/gp/product/B000KZPG04/ref=as_li_tl?ie=UTF8&camp=1789&creative=390957&creativeASIN=B000KZPG04&linkCode=as2&tag=hellinte-20&linkId=4HFQ2LNUSI7LIHO3.

## Brought to You By:

Squarespace: Use code HELLOINTERNET for 10% off your website.: squarespace.com/hellointernet

Hello Internet on Patreon: patreon.com/hellointernet.

## Show Notes:

**Discuss this episode: reddit.com/r/CGPGrey/comments/2km0bv/hi_23_call_of_the_postbox/**

Mathematical Sciences Research Institute: msri.org/web/msri

The World Series: en.wikipedia.org/wiki/World_Series

Accidental Armstrong photo: hq.nasa.gov/alsj/a11/AS11-40-5886HR.jpg

The silent assassin: toyota.com/prius/#!/Welcome

Grey drives across the country in a Prius: flickr.com/photos/cgpgrey/sets/72157624717997244

⌘X 22.1: youtube.com/watch?v=rMY0NgKXtCA

⌘X 22.2: youtube.com/watch?v=CB3USf8xnTw

**Brady's subreddit!: reddit.com/r/bradyharan**

Consumer Product Safety Commission Electrocutions Report: cpsc.gov/PageFiles/108404/2008electrocutions.pdf

Boeing 747: en.wikipedia.org/wiki/Boeing_747

747 theft tool: amazon.com/gp/product/B0030V0PEW/ref=as_li_tl?ie=UTF8&camp=1789&creative=390957&creativeASIN=B0030V0PEW&linkCode=as2&tag=hellinte-20&linkId=KWJHBVRSTWCEPT42

CGP Grey post cards: subbable.com/cgpgrey

H.I. #22: 16-hour Search for Wallpaper: http://www.hellointernet.fm/podcast/22

Bellroy wallets: bellroy.com

Brady's wallet: youtube.com/watch?v=yoPf98i8A0g

Free parking: npr.org/templates/story/story.php?storyId=113883274

YouTubers with a million or more subscribers: vidstatsx.com/youtube-top-1000-most-subscribed-channels

Nobel prizes: nobelprize.org/nobel_prizes

_DavidSmith: Blank Icon Slots: david-smith.org/blog/2014/10/15/blank-icon-slots

Another blank icon solution: iempty.tooliphone.net/en/customize/iphone/customize-your-iphone-springboard-with-transparent-icons

Such a mac user thing to say: reddit.com/r/CGPGrey/comments/2bbh2d/recommended_podcast_apps/cj3od57

Dark Mode as iOS Accessibility Feature: cgpgrey.com/blog/dark-mode-as-accessibility-feature

List of iOS text editors: brettterpstra.com/ios-text-editors

Switching costs: en.wikipedia.org/wiki/Switching_barriers

1Password: itunes.apple.com/gb/app/1password-password-manager/id443987910?mt=12&uo=4&at=11l5Fy

St Pancras: flickr.com/photos/almonkey/3547556830

Split-flap display: en.wikipedia.org/wiki/Split-flap_display

A Mile of Pi: youtube.com/watch?v=0r3cEKZiLmg

The Making of a Mile of Pi: youtube.com/watch?v=99Welatppzk

Mile of Pi Music Montage (Grey's favorite: youtube.com/watch?v=nEBujc_JaE4

Matt Parker: standupmaths.com

Brady at Plane Crash Corner: static.squarespace.com/static/52d66949e4b0a8cec3bcdd46/t/544ff5a7e4b0b7e85ed406ce/1414526387181

$H.I. #106: Water on Mars Subscribe to the Podcast: http://goo.gl/CemLaj Grey: https://www.youtube.com/user/cgpgrey Brady: https://www.youtube.com/user/numberphile Discussion: http://www.reddit.com/r/CGPGrey/ Grey & Brady discuss the British heat wave, water on Mars, Trypophobia, Kit Kat Trademarks, anti-dog discrimination, and YouTubes new news initiative and fake news. ## Sponsors: Backblaze: unlimited, cloud backup for Macs and PCs for just $5/month - get a fully-featured 15 day free trial at backblaze.com/hellointernet: http://backblaze.com/hellointernet Fracture: Photos printed in vivid color directly on glass - get 15% off your first order at fractureme.com/hi and dont forget to pick Hello Internet in their one question survey: http://fractureme.com/hi Audible: start a 30-day trial and get your first audiobook free by signing up at audible.com/hellointernet or text hellointernet to 500-500: http://audible.com/hellointernet Listeners like YOU on Patreon: https://www.patreon.com/hellointernet ## Show Notes: **Discuss this episode on the reddit: https://www.reddit.com/r/CGPGrey/** Water on Mars: https://en.wikipedia.org/wiki/Chronology_of_discoveries_of_water_on_Mars Trypophobia: https://en.wikipedia.org/wiki/Trypophobia Trypophobia subreddit GROSS WARNING, MAYBE DONT CLICK UNTIL AFTER HEARING BRADYS REACTION ON THE SHOW: https://www.reddit.com/r/trypophobia/ TOTALLY OK TO CLICK: Trypophobia face makeup: https://i.imgur.com/Eln84FQ.gifv Welcome to North Carolina: https://static1.squarespace.com/static/52d66949e4b0a8cec3bcdd46/t/5b605b1e88251b6349c84aad/1533041497178/Screen+Shot+2018-07-31+at+13.48.46.png Trypophobia coconut: https://www.reddit.com/r/trypophobia/comments/5k1qu6/poked_holes_into_coconut_flesh_it_looks_like_a/ YouTube truth banners: https://i.redd.it/ip26g5tfg3c11.png Example 2: https://i.redd.it/1cty8fnb84d11.png Kit Kat case: No break for Nestlé in trademark row: https://www.bbc.co.uk/news/world-europe-44939819 YouTubes new news initiative: https://techcrunch.com/2018/07/09/youtube-is-fighting-fighting-fake-news-with-25m-to-promote-journalism-and-more-context-in-search-results/ News Lab at YouTube channel: https://www.youtube.com/user/newslabatgoogle$

$H.I. #68: Project Revolution Subscribe to the Podcast: http://goo.gl/CemLaj Grey: https://www.youtube.com/user/cgpgrey Brady: https://www.youtube.com/user/numberphile Discussion: http://www.reddit.com/r/CGPGrey/ # Project Revolution Grey and Brady discuss: an exclusive episode of Hello Internet that will be difficult to listen to, the superiority of vinyl, Grey goes to America and complains about tipping yet again, a toothbrush update, a listener photo, airship crash corner, the first self-driving cars on the road, the discovery of exoplanet Proxima Centauri b, and the frightening Fermi paradox. ## Brought to You By Backblaze: Online backup for $5/month: http://backblaze.com/hellointernet Fracture: Photos printed in vivid color directly on glass. @fractureme and #petsofhi for contest: http://fractureme.com/podcast Squarespace: Use code HELLO for 10% off your website: https://www.squarespace.com/?channel=podcast&subchannel=themidroll&source=hellointernet Listeners like YOU on Patreon: http://www.patreon.com/hellointernet ## Show Notes HI on Vinyl: http://www.bradyharanblog.com/vinyl/hellointernet HI album cover artwork: http://static1.squarespace.com/static/548b5b70e4b0b57ba182907d/57c35602e4fcb561cb86dd79/57c35ae6ff7c5049cd322eb6/1472422435349/HI-Album-Cover-Front.jpg?format=1000w Music streaming boosts sales of vinyl: http://www.bbc.co.uk/news/entertainment-arts-36027867 Star Wars LaserDisc: https://static1.squarespace.com/static/52d66949e4b0a8cec3bcdd46/t/57c5e3fb46c3c45275f26f86/1472586757724/IMG_6132.jpg?format=1500w What a LaserDisc is: https://en.wikipedia.org/wiki/LaserDisc Bradys original artwork: https://static1.squarespace.com/static/52d66949e4b0a8cec3bcdd46/t/57c46317cd0f6808eb8a243d/1472488231627/bradyscribble.jpg?format=1500w Pocket full of Kryptonite: http://amzn.to/2bMgUj3 Kokomo: http://amzn.to/2c9hWH5 Flag of Wyoming: https://en.wikipedia.org/wiki/Flag_of_Wyoming#/media/File:Flag_of_Wyoming.svg Bradys wooden toothbrush: https://static1.squarespace.com/static/52d66949e4b0a8cec3bcdd46/t/57c46ad8579fb3dcff7e7f78/1472490212850/IMG_6030.jpg?format=1500w Classic American Cars: https://www.youtube.com/watch?v=Is0SJYGS95U Listener photo from Mike : https://static1.squarespace.com/static/52d66949e4b0a8cec3bcdd46/t/57c46e56197aea7e4b30fd51/1472491099434/IMG_6029.TIF.jpg?format=1500w Plane Crash Investigator: Deadly Silence: https://static1.squarespace.com/static/52d66949e4b0a8cec3bcdd46/t/57c46e65197aea7e4b30fe68/1472491110026/IMG_6028.JPG?format=1500w Airship crash, Airlander 10: https://www.youtube.com/watch?v=Mg-RPTiVa_Q&feature=youtu.be Hybrid Air Vehicles HAV 304 Airlander 10: https://en.wikipedia.org/wiki/Hybrid_Air_Vehicles_HAV_304_Airlander_10 Front promotion shot: https://en.wikipedia.org/wiki/Hybrid_Air_Vehicles_HAV_304_Airlander_10#/media/File:Airlander Mission_Module_Fitting.jpg Airship Kardasian: http://i.dailymail.co.uk/i/pix/2016/02/12/11/3120036400000578-3438477-One_tweet_by_Turkish_website_Sputnik_says_The_world_s_largest_ai-a-10_1455277897379.jpg The Worlds First Self-Driving Taxis Debut in Singapore: http://www.atlasobscura.com/articles/the-worlds-first-selfdriving-taxis-debut-in-singapore Proxima Centauri b: https://en.wikipedia.org/wiki/Proxima_Centauri_b The Fermi Paradox: https://en.wikipedia.org/wiki/Fermi_paradox$

$H.I. #111: Disgusting Wheel of Filth Subscribe to the Podcast: http://goo.gl/CemLaj Grey: https://www.youtube.com/user/cgpgrey Brady: https://www.youtube.com/user/numberphile Discussion: http://www.reddit.com/r/CGPGrey/ Grey and Brady discuss: heatwaves revisited, progress in project Cyclops, The Apple Watch as Black Mirror horror, Brady goes to Peru, being from America, leap year criminals, doggy bags, The Buzz, and C-words. ## Sponsors: FreshBooks: Online invoicing made easy - get a free unrestricted 30-day trial at FreshBooks.com/hello and enter Hello in the how did you hear about us section: https://www.freshbooks.com/hello Fracture: photos printed in vivid color directly on glass - get a special discount off your first order at fractureme.com/hi and dont forget to pick Hello Internet in their one question survey: http://fractureme.com/hi Casper: get your best rest, one night at a time - get $50 toward select mattresses by visiting Casper.com/HI and using promo code HI at checkout: https://casper.com/hi Listeners like YOU on Patreon: https://www.patreon.com/hellointernet ## Show Notes: **Discuss this episode on the reddit: https://www.reddit.com/r/CGPGrey/** Its hot in the summer: 2003 edition: https://www.metoffice.gov.uk/learning/learn-about-the-weather/weather-phenomena/case-studies/heatwave 2005 edition: http://news.bbc.co.uk/1/hi/uk/4107890.stm 2006 edition: https://en.wikipedia.org/wiki/2006_European_heat_wave 2007 edition: https://en.wikipedia.org/wiki/2007_European_heat_wave 2008 mini edition: https://www.telegraph.co.uk/news/uknews/1935112/Britons-soak-up-sun-as-mini-heatwave-hits-UK.html 2009 edition: https://www.theguardian.com/uk/2009/jul/01/heatwave-met-office-health-advice 2010 edition: https://www.theguardian.com/uk/2010/jul/10/uk-heatwave-deaths-rise-elderly 2011 edition: https://www.theguardian.com/uk/2011/oct/03/uk-weather-normal-record-heatwave 2012 edition: https://www.theguardian.com/uk/2012/may/28/storms-dramatic-end-uk-heatwave 2013 edition: https://en.wikipedia.org/wiki/2013_Great_Britain_and_Ireland_heat_wave 2014 edition: https://www.bbc.co.uk/news/uk-28351774 2015 edition: https://www.theguardian.com/uk-news/2015/jul/01/heatwave-hits-heathrow-temperature-airport-flies-past-32c 2016 edition: https://www.theguardian.com/uk-news/2016/aug/14/uks-second-heatwave-of-the-summer-on-its-way 2017 edition: https://www.theguardian.com/uk-news/2017/jun/21/uk-heatwave-to-set-40-year-temperature-record 2018 edition: https://www.bbc.co.uk/news/uk-45399134 H.I. #109: Twitter War Room on YouTube: https://www.youtube.com/watch?v=iLqbsgwLHX0 CGPGrey2: Thinking About Attention: https://www.youtube.com/watch?v=wf2VxeIm1no Self Control: https://selfcontrolapp.com Cusco: https://en.wikipedia.org/wiki/Cusco Machu Picchu: https://en.wikipedia.org/wiki/Machu_Picchu Bradys first coffee: https://www.youtube.com/watch?v=8MxnvXabKGY Juvenile or adult? Leap-year suspect poses conundrum for ACT court: http://www.abc.net.au/news/2018-09-13/canberra-court-leap-year-girl-adult-or-child/10242750 Bees in South African planes engine delay flights: https://www.bbc.co.uk/news/world-africa-45654501$

$H.I. #66: A Classic Episode Subscribe to the Podcast: http://goo.gl/CemLaj Grey: https://www.youtube.com/user/cgpgrey Brady: https://www.youtube.com/user/numberphile Discussion: http://www.reddit.com/r/CGPGrey/ Brady and Grey discuss: Snapchat again, emoji flags, Tesla, Bradys papercuts, plane crash corner, and health corner. And also Brexit, long after the discussion could possibly be relevant. ## Brought to You By Fracture: Photos printed in vivid color directly on glass. http://fractureme.com/podcast Igloo: An intranet youll actually like: http://igloosoftware.com/hello Backblaze: Online backup for $5/month: http://backblaze.com/hellointernet Listeners like YOU on Patreon: http://www.patreon.com/hellointernet ## Show Notes Discuss this episode on the reddit: http://www.reddit.com/r/cgpgrey Grey & Brady discuss *Getting Things Done*: https://youtu.be/aPkd2uibHTo?t=57m45s The photo in Bradys mystery package: https://static1.squarespace.com/static/52d66949e4b0a8cec3bcdd46/t/578ccd2403596ee71370b59d/1468845390905/IMG_3690.jpg?format=1500w Grey on Snapchat: https://static1.squarespace.com/static/52d66949e4b0a8cec3bcdd46/t/57753fdf440243a48f5a10db/1467301898976/?format=1500w Brady on Snapchat: https://static1.squarespace.com/static/52d66949e4b0a8cec3bcdd46/t/5775266e2994ca36059821fc/1467295377378/?format=1500w Destin on Snapchat: https://static1.squarespace.com/static/52d66949e4b0a8cec3bcdd46/t/5775272737c58164fa2d6ed2/1467296057375/?format=1500w Destin annoys Grey by putting him on Snapchat: https://www.youtube.com/watch?v 7TXoVjf_64 Snapchat introduces memories: http://snapchat-blog.com/post/146998839575/introducing-memories Emoji flags for The Home Nations: http://blog.emojipedia.org/emoji-flags-for-england-scotland-and-wales/ Vatican City Flag emoji: http://emojipedia.org/flag-for-vatican-city/ Flag of England: https://en.wikipedia.org/wiki/Flag_of_England Flag of Scotland: https://en.wikipedia.org/wiki/Flag_of_Scotland Flag of Wales: https://en.wikipedia.org/wiki/Flag_of_Wales Union Jack with Welsh dragon: https://upload.wikimedia.org/wikipedia/commons/thumb/6/6a/Union_Flag_%28including_Wales%29.svg/1280px-Union_Flag_%28including_Wales%29.svg.png Marco Arment: http://twitter.com/marcoarment wrote an article about the Tesla Autopilot: https://marco.org/2016/07/06/tesla-autopilot after we recorded this episode. Tesla fatal accident: https://en.wikipedia.org/wiki/Tesla_Model_S#Fatal_accident Liberia: https://en.wikipedia.org/wiki/Liberia vs China: https://en.wikipedia.org/wiki/China Boeing 787: https://en.wikipedia.org/wiki/Boeing_787_Dreamliner Dreamliner windows: http://gizmodo.com/setsession?r=http%3A%2F%2Fgizmodo.com%2F5829395%2Fhow-boeings-magical-787-dreamliner-windows-work&sessionId=27f666a2-b5a3-4243-8f2e-f56ad275754f 31 years later we found the flight recorder: https://operationthonapa.com/31-years-later-we-found-the-flight-recorders-786d0f9fde61#.w1k277319 Water Boiling at Everest: https://www.youtube.com/watch?v=JTL4dj3Gx1o The Summit: http://thesummitfilm.com The Cheeseboard: http://cheeseboardcollective.coop/ Brexit: https://en.wikipedia.org/wiki/United_Kingdom_withdrawal_from_the_European_Union Brady & Grey discuss Brexit pre-Brexit: https://youtu.be/RdovrwkE3Qc?t=1h13m48s Ben Goldacre on Brexit: https://www.facebook.com/badscience/photos/a.10151151382813911.466962.26030473910/10154194462328911/$