![Upsell Copywriting Formula [from Dan Kennedy, Gary Halbert, Justin Goff, Roy Furr]](https://i.ytimg.com/vi/IeyQvvZaZHY/mqdefault.jpg)
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Last Updated: October 18, 2026
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SIPB 50 schedule: sipb50.mit.edu/ To find out more about Student Cable Video Productions and how you can participate, ... New episode with CircuitPython core developer Notes document is available here, with timecodes: ... ... gist.github.com/tannewt/786a4aca69df8455bb9c49b6bba02c71 Thanks to and @ ... available here: gist.github.com/tannewt/13bcfc94030a28b4a0ee471f84f4ad91 Thanks to @ ... time codes are available here: gist.github.com/tannewt/5b4b2d637d6b1954a6d8a1bd3cf93e65 Thanks to @ Episode Links ⏩ High-Velocity Copywriting Course
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