Elon Musk and his startup Neuralink’s scientists showed off a new brain-computer interface they say will advance therapeutic devices treating various neurological conditions with a new level of precision. The technology, in development for two years, will soon be submitted to the U.S. Food and Drug Administration for testing on human subjects. The company thus far has received $158 million in funding and has about 100 employees. Musk stated that one goal of the announcement is to recruit more talent. Read more

Facebook’s Instagram began testing a new approach with users in Canada two months ago and this week expanded its efforts to include users in Australia, Brazil, Ireland, Italy, Japan and New Zealand. The experiment removes emphasis on the “Like” feature to minimize the pressure to compete, while hopefully creating a more personal and enjoyable experience. Users are still able to see who liked other people’s posts or watched their videos, but there is no longer a running tally of the number of likes and views (however, users can still privately see the counts for their own posts). Read more

Republican and Democratic lawmakers excoriated tech giants Amazon, Apple, Facebook and Google this week on Capitol Hill. Chief among the critics were Senator Ted Cruz (R-Texas), who oversees the Constitution subcommittee, and Representative David Cicilline (D-Rhode Island) who leads an antitrust subcommittee. Although the companies acknowledged the upheaval their technology has created in many industries, Senator Sherrod Brown (D-Ohio) responded that, “every time Americans trust you, they seem to get burned.” Read more

Twitter’s desktop interface hadn’t been tweaked in seven years and its technology was woefully out of date. The company began working on a redesign of the site in 2017 and started beta-testing it in September 2018. After showing it to more users in January, Twitter finally released it widely this week. The new three-column design is faster, but other changes are subtle. According to Twitter senior director of product design Mike Kruzeniski, much of the design changes focus on “simplification.” Read more

According to Amazon, this week’s Prime Day 2019 topped last year’s Black Friday and Cyber Monday combined. Despite competing discounts offered by eBay, Best Buy and Walmart, Prime members purchased more than 175 million products during the annual sales event. The tally is challenging to compare to previous Prime Day events since the e-commerce giant keeps expanding the duration of the sale (this year it was 48 hours, compared to 36 hours in 2018 and 30 hours in 2017). However, the event set a number of sales records, including new milestones for Amazon devices. Read more