❝Story35:30
YouTube's Real Core Action Isn't Watching — It's Subscribing
Sarah publicly assumed YouTube's core action was watching a video, until YouTube CPO Shishir Mehta reached out to correct her. Their analysis showed subscribing was the true core action: creators care about YouTube because that's where they grow an audience, and subscriptions create accruing benefits and mounting loss. It's a rare example of one action that strengthens both sides of the network.
- Watching a video was the early core action, but YouTube's own analysis pointed to subscribing
- Creators build accruing benefits and mounting loss as subscribers accumulate
- The best core actions serve both the supply side (creators) and demand side (viewers)
- All social products are really marketplaces — YouTube has creators and viewers
“what we realized was that subscribing was the core action on YouTube and it makes so much sense when he said it”
#youtube#core-action#marketplaces#retention
❝Story12:30
Evernote: Incredibly Retentive, But No Growth Loops
Sarah, a self-described lifetime Evernote user with thousands of documents, uses it to illustrate the difference between retention and growth. The more she uses Evernote the more she has to lose, making it extremely retentive — but it has no loops that pull in other people. Collaborative journals didn't work, so Evernote had to pay to acquire users and tapped out at level three.
- Evernote gets more retentive the more you use it — thousands of documents create lock-in
- It has no loops: using the product doesn't make it better for anyone else
- Collaborative journals failed as an attempt at a loop
- Without loops, Evernote had to spend money to acquire users and stalled at self-perpetuation
“there's no Loop where when I use a product I want to pull you into the product they tried at some point to do collaborative…”
“people keep telling me I should I need to move on to notion or something else but not yet I uh I will remain a…”
#evernote#retention#growth-loops#network-effects
❝Story18:00
How Push-Notification Overload Broke Clubhouse and Houseparty
Sarah explains why Clubhouse and Houseparty broke down even though their flywheels should have spun faster with more users. Both were real-time products that depended on push notifications, so the more people you followed the more notifications you got — until you started ignoring them all. That's the tricky nuance of the self-perpetuating level.
- Real-time products relied on push notifications to signal the moment to engage
- Following more people meant overwhelming notification volume
- Users start ignoring notifications, so the flywheel breaks down despite more users
- This is the subtle failure mode at the self-perpetuating (level three) stage
“even though the flywheel should be spinning faster it starts breaking down and that's the the real tricky Nuance in in this level three”
#clubhouse#houseparty#notifications#flywheel
❝Story49:30
DoorDash Won the Suburbs While Postmates Went Broad
In the food-delivery wars, Postmates chased big ambition from the start — many cities and categories beyond restaurants — while DoorDash controversially focused on the suburbs, where nobody thought delivery was economical. By picking a market with almost no competition, DoorDash could make both sides of its marketplace happy enough to retain, even while losing money early on.
- Postmates went after big cities and many categories at once, spreading itself thin
- DoorDash focused on the suburbs where there was little competition
- DoorDash lost money early because suburban delivery times were long
- Focusing on an overlooked market let it make both sides happy and retain them
“the beautiful thing about the suburbs is that there was very little competition because no one thought that you could do it economically”
#doordash#postmates#focus#food-delivery
❝Story1:01:30
The Moment Rekki's Marketplace Tipped
Sarah shares how Rekki, a marketplace connecting restaurants and food suppliers, tipped. It started with an expensive salesforce knocking on London restaurant doors, but as more chefs ordered through the app, suppliers grew to prefer the clean order forms over listening to hours of voicemails. Eventually suppliers handed Rekki CSVs of their own customers to onboard — the market went from pounding the pavement to receiving lists on a silver platter.
- Rekki began with a costly salesforce cornering chefs in London kitchens
- Suppliers preferred Rekki's order forms over voicemails and texts from chefs
- Suppliers began sending Rekki CSVs of their customers to onboard for them
- Tipping feels like product-market fit — the market comes to you instead of you pushing
“the suppliers would reach out to recky and be like hey here's the CSV of all of our customers can you reach out to them…”
“getting a list on a silver platter of restaurants to on board”
#rekki#marketplaces#tipping-point#supply-side
❝Story1:32:00
How Etsy Lost Its Way Chasing GMV
As Etsy ran up to going public, it started chasing GMV growth and let mass-produced goods onto a platform that stood for handmade goods. Sarah recalls being driven crazy at Pinterest by a seller spamming mass-produced scarves. The drift beyond what Etsy stood for eroded trust with handmade sellers and buyers and likely contributed to a CEO change.
- Etsy chased GMV ahead of its IPO by allowing mass-produced goods
- It drifted beyond the handmade-goods identity it stood for
- The shift caused a real backlash and erosion of trust from sellers and buyers
- It likely precipitated the CEO change to the leader who later rebuilt Etsy
“they started to have a lot of mass-produced goods on Etsy it drove me crazy at Pinterest”
“it was just very clear that Etsy had kind of lost its way in that in that moment”
#etsy#gmv#trust#marketplaces