Lambda, the cosmological constant, makes…
Gray blames Common Core's testing pressur…
One ~60-line timer hook works with zero p…
Astra builds editable layers, keyframes,…
Ammonius Saccas split philosophy into Chr…
Houthis broke through Yemeni government l…
Buyers pay for convenience and commercial…
Australia signs bilateral defence pacts w…
Dwarf galaxy Antlia 2 collided with our g…
A weekly intelligence instrument for builders

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Pulse turns the growing creator firehose into cited intelligence for builders: AI, tech, world news, gaming, and any other channel style that tickles your fancy. Weekly updates to stay In the Know, or the brief in your inbox within the hour of a drop for Pro and Business members. So you spend less time watching and more time designing your life.

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// 129,255 cited moments from 1395+ video sessions and 874+ hours of research, climbing every day — every claim cited to the source, nothing invented. Samples below are real, not mockups.
Pulse follows whatever channels you choose — any creator, brand, or topic. Here are four we briefed recently: Science · Why 3,000 Supernovae Are Breaking Our Mod… Debate · Is social media driving teen mental healt… Brief · I Used 1 React Hook In 10 Platforms AI · GPT-6 Astra Makes STUNNING Motion Graphic…
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874+ hrs
of source material
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PULSE. BRIEFS// sep 2026
Why 3,000 Supernovae Are Breaking Our Models of Dark Energy▶ 15 min source
Anton Petrov
Why 3,000 Supernovae Are Breaking Our Models of Dark Energy

This video covers cosmology and the debate over dark energy and the cosmological constant; the source gives no presenter credentials, course name, or institutional setting. It is organized around the Lambda-CDM (Lambda Cold Dark Matter) model, in which Einste…

The gist
  • Concept [00:38]: the cosmological constant, lambda, is stated to make up approximately 68% of the universe in the standard model
  • Concept [03:19]: because Type Ia supernovae have consistent peak brightness, they can be used as a 'standard candle' to determine an object's distanc…
  • Concept [04:30]: dark energy was framed using Einstein's cosmological constant lambda, forming the Lambda-CDM (Lambda Cold Dark Matter) model
✓ every claim cited to the exact-second timestampRead the full brief →

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Debate ·

Is social media driving teen mental health issues? | The Vergecast

2026-09-15
  • The host and guest Peter Gray, a Boston College psychology research professor and author of the new book Restoring Childhood, discuss competing explanations for the…
  • [03:17] Gray states that US teen suicide rates for ages 15 to 19 increased roughly four-fold between 1950 and 1990
  • Gray says that by some estimates, rates of what would today be called major depressive disorder or clinically significant anxiety disorder increased five to ten-fol…
cited · · every claim timestamped
Brief · Traversy Media

I Used 1 React Hook In 10 Platforms

30 min source · Traversy Media · 2026-09-15
⚡ 30 min video → 30-sec read
  • [00:18] Presenter built a roughly 60-line timer hook using standard React state and effects, with no platform-specific logic
  • [00:32] That single hook was dropped into 10 completely different React apps spanning web, desktop, mobile, VR/XR, terminal, and more
  • [00:44] Everything lives in one repo, react-everywhere, structured as apps/, packages/, and package.json, linked in the description
cited · Traversy Media · every claim timestamped
AI · Duncan Rogoff | Learn Cla…

GPT-6 Astra Makes STUNNING Motion Graphics (or does it?)

12 min source · Duncan Rogoff | Learn Claude Code · 2026-09-15
⚡ 12 min video → 30-sec read
  • System does (00:00): GPT-6 Astra can build editable motion graphics videos directly inside Adobe After Effects using a ChatGPT plugin
  • System does (00:08): the demo video shown was made in about 10 minutes using the free ChatGPT plugin
  • Context (00:14): the presenter has 15 years' experience as an art director and motion graphics designer for brands including Apple, PlayStation, and Nissan
cited · Duncan Rogoff | Learn Cla… · every claim timestamped
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Questions

The honest answers.

Is this just an AI summary?

No. Every claim is anchored to the source, the timestamp, and a screenshot, and the pipeline is built to avoid inventing numbers. The difference is "an AI summarized it" versus "here is the claim and the exact frame it came from." You can act on the second one.

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