irisnguyen_cs's profile picture. Product Designer

Iris

@irisnguyen_cs

Product Designer

Day 193: Stack Overflow & The Rewards of the Tribe Stack Overflow is the largest Q&A platform for developers, where users voluntarily share technical knowledge and build high-quality content. - Reward system: Users answer questions to earn social recognition. Others can upvote…

irisnguyen_cs's tweet image. Day 193: Stack Overflow & The Rewards of the Tribe

Stack Overflow is the largest Q&A platform for developers, where users voluntarily share technical knowledge and build high-quality content.

- Reward system: Users answer questions to earn social recognition. Others can upvote…

Day 192: How Facebook Keeps You Hooked Facebook uses a variety of social rewards to keep users coming back every day: - Variable content: The endless News Feed — you never know what you’ll see next. This uncertainty triggers curiosity and keeps you scrolling. - Rewards for…


Day 191: Rewards of the Tribe This reward comes from other people - because humans deeply crave social connection. - What is it? Praise, acceptance, belonging, messages, comments, likes. - Where is it used? Social networks like Facebook, Instagram, Zalo, or online communities.…


Day 190: Three Types of Variable Rewards Successful products use three kinds of variable rewards to keep users coming back: 1.The Tribe: Rewards from others - likes, comments, or social recognition. 2.The Hunt: Rewards from searching - finding something valuable or exciting,…


Day 189: The Power of Variable Rewards Scientist B.F. Skinner experimented with pigeons: - When food appeared every time they pecked, they learned quickly. - But when food appeared randomly (sometimes yes, sometimes no), the pigeons pecked even more often and excitedly. 👉…


Day 188: The Brain Loves Surprise The human brain is designed to learn how things work and turn them into habits to save energy. But when everything becomes too predictable, we lose interest. Lesson: - When a baby first meets a dog, it’s curious - the uncertainty creates…


Day 187: Take a Rest Taking a rest day today — body and mind need to recharge! #OneBetterThing #RestDay #SelfCare #Iris

irisnguyen_cs's tweet image. Day 187: Take a Rest
Taking a rest day today — body and mind need to recharge!

#OneBetterThing #RestDay #SelfCare #Iris

Day 186: The Endowed Progress Effect Rule: We work harder when we feel like we’ve already made some progress. What the brain thinks: “I’ve already started — it’d be a waste to stop now!” Example: Apps like LinkedIn show a progress bar that starts at 20% even before you complete…


Day 185 – The Anchoring Effect Rule: We often rely too much on the first piece of information we see - it becomes the anchor for all later decisions. 🧠 What the brain thinks: “The first number I see must be the reference point,” even if it’s totally irrelevant. 🛒 Example:…


Day 184 – The Framing Effect Rule: The way something is presented (framed) changes how people perceive its value. 🎻 Example: When world-class violinist Joshua Bell played for free in a subway, almost no one stopped. But in a concert hall, people paid hundreds of dollars. →…


Day 183 – The Scarcity Effect Rule: The rarer something is, the more valuable it seems. What the brain thinks: “If this item is almost gone, maybe others know something I don’t - it must be good!” Application: E-commerce sites often show messages like “Only 14 left in stock”…

irisnguyen_cs's tweet image. Day 183 – The Scarcity Effect

Rule: The rarer something is, the more valuable it seems.

What the brain thinks:
“If this item is almost gone, maybe others know something I don’t - it must be good!”

Application:
E-commerce sites often show messages like “Only 14 left in stock”…

Day 182 - Increase Motivation or Ability First? Although all three factors (Motivation, Ability, Trigger) are needed for an action to happen, for tech companies, investing in making things easier to use (Ability) gives the highest ROI (Return on Investment). 1. Increasing…


Day 181 - Infinite Scroll: The Pinterest Effect How do platforms make browsing effortless? The Old Way: You had to click a button and wait for the next page to load. The New Way: As you scroll near the bottom of the page, new content (like Pins) automatically loads. This…

irisnguyen_cs's tweet image. Day 181 - Infinite Scroll: The Pinterest Effect 
How do platforms make browsing effortless?

The Old Way: You had to click a button and wait for the next page to load.

The New Way: As you scroll near the bottom of the page, new content (like Pins) automatically loads. 
This…

Day 180 – Simplify to Build a Habit Apple realized that precious moments pass quickly, so they wanted to make taking photos easier for users. Instead of unlocking the phone and finding the app, users can open the Camera right from the lock screen - just one simple swipe. 👉…


Day 179 – Reduce Effort to Share Twitter noticed that 25% of tweets had links, so they wanted to make sharing even easier. They created an embeddable Tweet button that websites could add. With one click, users can instantly share without copying or typing anything. 👉 Effect:…

irisnguyen_cs's tweet image. Day 179 – Reduce Effort to Share

Twitter noticed that 25% of tweets had links, so they wanted to make sharing even easier.

They created an embeddable Tweet button that websites could add. With one click, users can instantly share without copying or typing anything.

👉 Effect:…

Day 178 – Reduce Friction, But Smartly In the past, signing up for a new account often took many steps - entering an email, creating a password, confirming info - especially annoying on mobile. Now, many apps make it easier by allowing sign-in with Facebook, Google, email, or…


Day 177 – Elements of Simplicity (Ability) To make someone take action, it must be extremely easy to do. Dr. B.J. Fogg suggests identifying the scarcest resource your users lack - “What makes this hard for them?” - and simplify your product based on that factor. He highlights 6…


Day 176 – AWS was down today ☁️ So apps like @memrise and @duolingo couldn’t be accessed for a while. A small reminder of how much we rely on cloud services - when the cloud stops, everything else pauses too. #OneBetterThing #TechThoughts #AWS #memrise #duolingo #Iris


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