➀ The article discusses the difficulty of upgrading soldered-in RAM on laptops, highlighting the specialized tools and skills required, such as an x-ray machine and precise desoldering techniques. The author, Greg Davill, is an electrical engineer and regrets the experience despite the successful outcome. ➁ Greg Davill mentions a similar project on Hackaday for upgrading a MacBook's memory, noting that the project was not completed and should be taken as entertainment. ➂ The article also includes a list of related tech deals and news, such as Adobe Creative Cloud subscriptions, a website critical of LinkedIn, and a new exhibit in Houston.