Science & Technology

How Light and Code Can Transform a City | Leo Villareal | TED

Published

1 year ago

March 28, 2025

Leo Villareal is an artist, but his tools aren’t paint and canvas; he manipulates light, color and computer code to create monumental works of public art. In a dazzling talk, he takes us inside his efforts to light up some of the world’s most iconic bridges — including an installation of 25,000 LED lights on San Francisco’s Bay Bridge and a piece uniting nine bridges along London’s River Thames — and shows how public art can transform a city. (Recorded at TEDNext 2024 on October 22, 2024)

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26 Comments

@Eva-w3c6e

March 28, 2025 at 7:04 am

Fascinated by your creativity! The videos are always top notch and I am grateful for your efforts in creating such interesting content.🐡🦁😂

Reply
@Mia-y4n7p

March 28, 2025 at 7:05 am

I was simply amazed by your work and couldn’t pass by without expressing my admiration. Your talent deserves admiration. Thank you for your creativity.
❤️❤️ 6 🐪

Reply
@sooma-ai

March 28, 2025 at 7:12 am

Artist Leo Villareal uses light, code, and technology to create large-scale public art installations, transforming iconic bridges in San Francisco and London. His work, inspired by experiences at Burning Man, aims to change perceptions and bring people together through mesmerizing light displays.

Reply
@dennislutgens8693

March 28, 2025 at 7:14 am

Thank you for being a major contributor of light polution…

Reply
@graceb947

March 28, 2025 at 7:25 am

Very well said!🙌💫🌟💫💡

Reply
@微中年台客

March 28, 2025 at 7:30 am

“A popular and intelligent leader of Taiwan’s third-largest political party is being persecuted by the judiciary. Without evidence, he has been detained for 7 months now, and he is currently experiencing hematuria. They won’t allow him to seek medical treatment and continue to detain him. The ruling party in Taiwan has completely staged this, controlling even the courts and judges for political purposes. Please help save the chairman of Taiwan’s third-largest party! He was the first doctor to introduce ECMO to Taiwan and has saved countless lives. I implore international human rights supporters to pressure the ruling party in Taiwan to release him. Please.”

Reply
@DominionAnako-bb7ry

March 28, 2025 at 7:42 am

Beautiful message ❤️ 💖 💕 ♥️

Reply
@KMHill

March 28, 2025 at 7:48 am

Light pollution and energy waste.

Reply
@pinealgasm

March 28, 2025 at 7:57 am

i challenge anyone to document how difficult it is to get me the help i need.

Reply
- @subbasslines
  
  March 28, 2025 at 10:19 am
  
  It all starts with you.
  Without acknowledging the problems first, nothing will change.
  If you focus on solutions, you can make progress.
  
  Reply
- @pinealgasm
  
  March 28, 2025 at 10:21 am
  
  @subbasslines that’s ableism!
  
  Reply
- @subbasslines
  
  March 28, 2025 at 10:44 am
  
  @@pinealgasm no it’s not!
  I basically said, lay your cards out, focus on desired results and people can help you.
  
  Reply
- @pinealgasm
  
  March 28, 2025 at 10:46 am
  
  @subbasslines you imply i don’t.
  
  Reply
- @subbasslines
  
  March 28, 2025 at 10:58 am
  
  @@pinealgasm You’re too quick to judge without understanding 😑
  I was trying to help, seems like you just want attention 😕
  
  Reply
@tjtampa214

March 28, 2025 at 9:21 am

Pretty – but so intrusive to the life that lives in the water below that are part of the circle of life. Some concerned groups care so much about even an individual species that they will protest and change laws, and then there’s groups like this with more selfish intent. OK, lights for safety and, hopefully, beauty (although he mentioned entrainment – no thank you). But safety lighting can be on top of the bridge near the foot level of the traveller’s, appropriately directed light that makes sense but still attractive. Also, it would save tons of money on electricity and maintenance with fewer lights and not so extravagant.

Reply
- @subbasslines
  
  March 28, 2025 at 10:35 am
  
  Settle down. It’s a gentle light show. Are you paying the bills?
  There are so many wasteful companies industries and you attack a guy, trying to shine a little bit of light into people’s dark lives.
  
  Lights attract fish if you went fishing, you would know that.
  
  Reply
- @BonnieShadow33
  
  March 28, 2025 at 8:34 pm
  
  I thought about this, too. Lights at night disrupt the circadian rhythms of both humans and wildlife, including fish. Also, city lights interfere with our view of the night sky – a natural wonder that too many city folk never get to see.
  
  I wish this artist would take those things into account when designing lightscapes.
  
  Reply
@harrypearle9781

March 28, 2025 at 9:35 am

LIGHTS of AWAKENING in times of TRUMP DARKNESS?
LINK to encourage us to THINK and save US from Trump 2.0 INSANITY ?
===================================================== TNX MCH

Reply
@harrypearle9781

March 28, 2025 at 9:54 am

DEMOCRATS might use LIGHT LINKS to point to TRUTH and TRUMP LIES !
Rambling on and on, in the media, is NOT, NOT working for DEMOCRATS.
(Why don;t Democrats have IDEA CONTESTS to find MEDIA that wakes up voters?)
??????????????????????????????????? TNX LEO ????????????????????????????????

Reply
- @harrypearle9781
  
  March 28, 2025 at 9:54 am
  
  tnx mch
  
  Reply
@ChristopherBak1

March 28, 2025 at 3:47 pm

You work for 42yrs to have $2m in your retirement, Meanwhile some people are putting just $20k in a meme coin for just few months and now they are multi millionaires. I pray that anyone who reads this will be successful in life

Reply
- @ChristopherBak1
  
  March 28, 2025 at 4:04 pm
  
  Maria Davis program is widely available online..
  
  Reply
@KnowledgeBites-73

March 28, 2025 at 6:26 pm

THANKS

Reply
@jwestney2859

March 28, 2025 at 9:04 pm

Light is beauty! …if it’s done with talent.

Reply
@urbanstrencan

March 29, 2025 at 3:25 pm

What a great talk

Reply
@lundy_cl

March 30, 2025 at 7:42 pm

🤝💯

Reply

Science & Technology

Learn What VCs Actually Want, From a Founder Who’s Raised $1B l Build Mode

Investors want founders who understand the financial reality of their business. Messy data, misunderstood metrics, or waiting until you’re nearly out of cash to start fundraising can cost founders leverage, valuation, and even a term sheet. In this episode of Build Mode, host Isabelle Johannesen sits down with Sasha Orloff, founder and CEO of Puzzle…

Published

1 day ago

August 20, 2026

CYBER TECH TV

In this episode of Build Mode, host Isabelle Johannesen sits down with Sasha Orloff, founder and CEO of Puzzle and Startup Battlefield alum, to talk about what he’s learned from building companies that have raised more than $1 billion collectively.

Sasha breaks down what investors look for during fundraising, which financial metrics founders should know by heart, and why VCs don’t expect your startup to be perfect—they expect you to understand its reality. He also shares how he nearly lost a term sheet because his data room wasn’t ready, how fundraising diligence changes as a startup grows, and why getting your financial house in order can help founders raise with more confidence and leverage.

They get into:
– What raising more than $1 billion across multiple companies taught Sasha about fundraising
– Why investors value founders who have a strong grasp of their company’s financial reality
– The financial metrics founders should know before pitching VCs
How investor expectations change from pre-seed and seed through Series A, B, and beyond
– Why revenue growth and the quality of that revenue are critical fundraising metrics
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– Why financial organization and compliance can influence investor confidence and startup valuations
– What founders should have prepared for the due diligence process
– Why VCs don’t expect perfection—and why being honest about what isn’t working can make for a stronger pitch
– How Sasha’s own fundraising and finance frustrations ultimately led him to build Puzzle
– How AI could change the way startups manage accounting and understand their financial health

Chapters:
00:00 – Why VCs Want Founders Who Understand Reality
01:26 – Sasha Orloff’s Journey to Building Puzzle
05:05 – Why Puzzle Started With Startup Founders
08:38 – What Founders Should Know Before Fundraising
11:08 – What Investors Look for During Due Diligence
14:37 – Understanding the Financial Health of Your Startup
17:52 – The Financial Mistakes Founders Make
20:19 – When Startups Need Accountants and Finance Teams
24:04 – How Sasha Almost Lost a Term Sheet
26:10 – The Financial Metrics Founders Should Know Cold
28:20 – Lessons From Raising $1B+ Across Multiple Companies
31:45 – Why Financial Readiness Matters to Investors
33:49 – How AI Is Changing Startup Accounting
37:17 – Inside Puzzle’s Series A With General Catalyst
38:52 – Launching Puzzle at Startup Battlefield
40:38 – Sasha’s Advice for Early-Stage Founders

Subscribe to Build Mode:
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How Satellites and AI Can Protect the Planet | Robbie Schingler | TED

Published

1 day ago

August 20, 2026

CYBER TECH TV

Space technologist Robbie Schingler cofounded a satellite company that images the whole planet every day, making visible changes on Earth. He shows how pairing that data with AI creates a “planetary intelligence” we can use to spot emerging threats we might not have seen otherwise. Now he asks: Can we close the gap between seeing a crisis coming and actually stopping it? (Followed by a note from TED guest curators Divya Siddarth and Audrey Tang) (Recorded at TED2026 on April 14, 2026)

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The TED Talks channel features the best talks and performances from the TED Conference, where the world’s leading thinkers and doers give the talk of their lives in 18 minutes (or less) — plus originals, podcasts and exclusive content. Look for videos on Technology, Entertainment and Design as well as science, business, global issues, the arts and more. Visit for our entire library, transcripts, translations and personalized recommendations.

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#TED #TEDTalks #Tech #ClimateChange

CNET

That Voicemail Isn’t Real, It’s AI. The New Wave of AI-Impersonation Scams

Scammers are using AI to impersonate high-profile targets, such as celebrities and politicians. Here’s how you can stay safe. You can find the products mentioned in this article linked below Commerce Link *CNET may get a commission on these offers Link to CNET article: Read more about X on CNET.com: Timecode Chapters: 00:00 The Threat…

Published

1 day ago

August 20, 2026

CYBER TECH TV

Scammers are using AI to impersonate high-profile targets, such as celebrities and politicians. Here’s how you can stay safe.

You can find the products mentioned in this article linked below
Commerce Link
*CNET may get a commission on these offers

Link to CNET article: Read more about X on CNET.com:

Timecode Chapters:
00:00 The Threat of AI Impersonation
01:25 How Deepfakes Are Used in Politics
04:07 The Rise of Hyper-Personalized Fraud
05:42 Testing a Voice Clone on My Boss
07:11 Audio Blind Taste Test With My Sister
11:10 How to Stay Vigilant Against AI Clones

Video Credits:
Host: Katelyn Chedraoui
Scripted by:Katelyn Chedraoui
Producer: Numi Prasarn
Camera: Carly Marsh
Video Editor: Jon Gomez
Thumbnail Designer: Zooey Liao

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