Twitter Goes to War With Substack

Lon Harris
Lon Harris is a contributor to dot.LA. His work has also appeared on ScreenJunkies, RottenTomatoes and Inside Streaming.
Twitter Goes to War With Substack
Evan Xie

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Substack announced a new feature this week called “Notes,” which will allow users to publish brief posts containing a few sentences, quotes, simple reactions, images, and links. These Notes are going to get their own dedicated tab, separate from longer-form Substack content, and the basic format feels purposefully borrowed from Twitter. Individual notes can be liked, replied to, and reshared – just like tweets – and there will even be separated tabs for authors to which you’re specifically subscribed vs. content from your “extended Substack network,” similar to Twitter’s “Following” vs. “For You” structure.


In their blog post outlining the new feature, Substack co-founders Chris Best, Hamish McKenzie, and Jairaj Sethi were quick to differentiate Notes from Twitter, drawing attention specifically to their revenue model. While Twitter is free (unless you’ve just GOT TO have that blue check) and writers receive no direct financial compensation for their contributions, Substack remains subscription-based. Rather than aiming for virality for its own sake, Team Substack argues that subscriptions provide a genuine incentive for posting quality content, as Notes will help Substack authors convert “casual readers into paying subscribers.”

High-minded rhetoric aside, Substack could clearly use a hot new feature. According to newly-disclosed SEC statements, the company burned through around $25 million in cash during a major 2021 expansion, up from just $1 million in expenses the year before. For the entire year 2021, the company earned gross revenue of just $11.9 million, mostly from its share of blog subscriptions. (2022 data is currently unavailable.)

Despite the obvious aesthetic similarities between Notes and Twitter, and Substack’s very overt attempts to lure away Twitter users, they seem likely to remain different kinds of platforms. In large part because so much of the power of Twitter is in its wide-open accessibility to all. Though a small percentage of overall users drive most of Twitter’s activity and engagement, they’re not always the same people who could attract massive paid followings on a platform like Substack. It remains to be seen whether a subscription-based platform can drive conversations and generate the kinds of breakout viral moments that have made Twitter feel essential.

Nonetheless, Twitter seems to view Notes as a threat. Within 24 hours of the feature’s announcement, the social network and microblogging service began scaling back interactivity with Substack. At first, Substack writers were just unable to embed tweets in their posts, but now, Twitter has blocked all likes, retweets and comments on any links pointing back to a Substack newsletter. As well, Twitter users can’t link to a Substack blog via their profile, making it essentially impossible to use your Twitter account to promote a paid Substack blog. (At least for now, you can apparently still get around these changes with a URL shortener. But you didn’t hear that from us…)

Asked about the controversy by The Verge, Substack’s trio of founders used Twitter’s moves as further ammunition, pointing out that it’s dangerous for writers to rely on a platform on which “they don’t own their relationship with their audience” and “where the rules can change on a whim.”

Beyond just bolstering a key argument in favor of its competitor, Twitter’s decision to go to war with Substack pretty clearly makes its own platform worse. By removing the incentive of promoting work for which they actually get paid, it seems likely that this move will discourage some active users – who, again, drive the bulk of Twitter’s traffic and engagement – from tweeting as much. Tellingly, the Substack purge even removed some links to Matt Taibbi’s “Twitter Files” reporting, produced in coordination with Twitter and its owner, Elon Musk.

As well, Twitter’s prominence is largely based around being at the center of so much online conversation and discourse. By removing the ability of Substack writers to refer back to tweets, Twitter is purposefully taking itself out of a lot of these discussions. If you make it significantly harder for writers to talk about tweets… they might actually stop talking about tweets. Which would be far worse for Twitter, overall, than just the presence of a new competitor, which may not actually be a direct competitor anyway.

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LA’s Upgrade in Travel and NBA Viewing
Image Source: Los Angeles World Airports

🔦 Spotlight

Exciting developments are underway for Los Angeles as the city prepares for major upgrades in both travel and entertainment. The Los Angeles Board of Airport Commissioners has approved an additional $400 million for the Automated People Mover (APM) at LAX, increasing its total budget to $3.34 billion. This boost ensures the elevated train’s completion by December 8, 2025, with service starting in January 2026. For Angelenos, this means a significant improvement in travel convenience. The APM will streamline connections between parking, rental car facilities, and the new Metro transit station, drastically cutting traffic congestion around the airport. Imagine a future without the dreaded 30-minute traffic delays at LAX! The APM will operate 24/7, reducing airport traffic by 42 million vehicle miles annually and carrying 30 million passengers each year, while also creating thousands of local jobs and supporting small businesses.

Meanwhile, the NBA is also making waves with its new broadcasting deals. The league has signed multi-year agreements with ESPN, NBC, and Amazon Prime Video, marking a notable shift in media partnerships. ESPN will maintain its long-standing role, NBC returns as a network broadcaster after years away, and Amazon Prime Video will provide NBA games through its streaming platform. Starting with the 2025-2026 season, these deals will enhance the league's reach and revenue, aligning with the NBA's goal to expand its audience and adapt to evolving viewing habits. Whether you're catching the action on TV or streaming online, these changes promise to elevate the fan experience and bring more basketball excitement to Los Angeles.


🤝 Venture Deals

LA Companies

  • Pearl, a startup that makes AI-powered software that assists dentists in identifying cavities, gum disease, and other dental conditions, raised a $58M Series B funding led by Left Lane Capital with Smash Capital, and others also participating. - learn more

LA Venture Funds

  • Fulcrum Venture Group participated in a prior $3.5M Pre-Seed Round for Code Metal, a developer tools startup. - learn more
  • B Capital co-led a $12.5M Seed Round for Star Catcher, a startup that aims to develop a space-based grid that captures solar energy in space and distributes it to satellites and other space assets. - learn more
  • Mantis VC and Amplify participated in a $140M Series C for Chainguard, an open source security startup. - learn more
  • Prominent LA venture capitalist, Carter Reum and wife, Paris Hilton, participated in a $14M Seed/Series A for W, the men’s personal care brand from Jake Paul. - learn more

LA Exits


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🤫 The Secret to Staying Fit at Your Desk: 6 Essential Under-Desk Exercise Machines

Health experts are sounding the alarm: our sedentary jobs are slowly killing us, yet we can't abandon our desks if we want to keep the lights on. It feels like we're caught between a rock and a hard place. Enter under-desk exercise machines – the overlooked heroes (albeit kind of goofy looking) of the modern workspace. These devices let tech professionals stay active, enhance their health, and increase their productivity, all without stepping away from their screens. Here are 6 fantastic options that will enhance the way you work and workout simultaneously.

DeskCycle Under Desk Bike Pedal Exerciser

This bike has nearly ten thousand five-star reviews on amazon. It works with nearly any desk/chair setup. It is quiet, sturdy and allows up to 40 pounds of resistance. If you are looking for an under-desk bike this is a fantastic option.

Type: Under-Desk Bike

Price: $180 - $200


Sunny Health & Fitness Dual Function Under Desk Pedal Exerciser

This under-desk bike is extremely quiet due to the magnetic resistance making it an ideal option if you work in a shared space. It doesn’t slip, has eight levels of resistance, and the option to work legs and arms. It’s about half the price of the DeskCycle bike making it a solid mid-range option for those looking to increase their daily activity.

Type: Under-Desk Bike

Price: $100 - $110


Sunny Health & Fitness Sitting Under Desk Elliptical

This under-desk elliptical comes in multiple colors if you really want to underscore that you are a quirky individual, in case an under-desk elliptical isn’t enough. This model is a bit heavy (very sturdy), has eight different resistance levels, and has more than nine thousand 5-star reviews.

Type: Under-Desk Elliptical

Price: $120 - $230


DeskCycle Ellipse Leg Exerciser

This under-desk elliptical is another great option. It is a bit pricey but it’s quiet, well-made and has eight resistance levels. It also syncs with your apple watch or fitbit which is a very large perk for those office-wide “step” challenges. Get ready to win.

Type: Under-Desk Elliptical

Price: $220 - $230


Daeyegim Quiet LED Remote Treadmill

If you have a standing desk and are looking to walk and work this is a fantastic option. This walking-only treadmill allows you to walk between 0.5 to 5 mph (or jog unless you have the stride length of an NBA forward). It is very quiet, which is perfect if you want to use it near others or during a meeting. You can’t change the incline or fold it in half but it is great for simply getting in some extra steps during the work day.

Type: Under-Desk Treadmill

Price: $220 - $230


Sunny Health & Fitness Foldable Manual Treadmill

This under-desk treadmill isn’t the most premium model but it is affordable and has an impressive array of features. It is a manual treadmill meaning it doesn’t need to be plugged in; it is foldable and offers an incline up to 13%. I personally can’t imagine working and walking up a 13% incline but if that sounds like your cup of tea, then I truly respect the hustle.

Type: Under-Desk Treadmill

Price: $150 - $200




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🤠Musk Picks Texas and 🔥Tinder AI Picks Your Profile Pictures

🔦 Spotlight

Tinder is altering dating profile creation with its new AI-powered Photo Selector feature, designed to help users choose their most appealing dating profile pictures. This innovative tool employs facial recognition technology to curate a set of up to 10 photos from the user's device, streamlining the often time-consuming process of profile setup. To use the feature, users simply take a selfie within the Tinder app and grant access to their camera roll. The AI then analyzes the photos based on factors like lighting and composition, drawing from Tinder's research on what makes an effective profile picture.

The selection process occurs entirely on the user's device, ensuring privacy and data security. Tinder doesn't collect or store any biometric data or photos beyond those chosen for the profile, and the facial recognition data is deleted once the user exits the feature. This new tool addresses a common pain point for users, as Tinder's research shows that young singles typically spend about 25 to 33 minutes selecting a profile picture. By automating this process, Tinder aims to reduce profile creation time and allow users to focus more on making meaningful connections.

In wholly unrelated news, Elon Musk has announced plans to relocate the headquarters of X (formerly Twitter) and SpaceX from California to Texas. SpaceX will move from Hawthorne to Starbase, while X will shift from San Francisco to Austin. Musk cited concerns about aggressive drug users near X's current headquarters and a new California law regarding gender identity notification in schools as reasons for the move. This decision follows Musk's previous relocation of Tesla's headquarters to Texas in 2021.

🤝 Venture Deals

LA Companies

LA Venture Funds

LA Exits

  • Penguin Random House agreed to acquire comic book publisher Boom! Studios from backers like Walt Disney Co. - learn more

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