Astra made me a sonar app that emits undetectable audio to scroll up/down on your computer.
It uses the doppler effect to determine where your hand placement is. You can even double tap in the air to change scroll directions!
Emanuel Perez
@emanperez28
Sam Altman @sama
We want to celebrate with people using GPT-6. We did this for GPT-5.5 and it was really fun.
We’re getting together in SF on September 16 to talk about the model, what we should build next, and mostly just to hang out.
Apply by Sep 10:
gpt6-launch-event.openai.chatgpt.site
We’re getting together in SF on September 16 to talk about the model, what we should build next, and mostly just to hang out.
Apply by Sep 10:
gpt6-launch-event.openai.chatgpt.site
12:03 AM UTC · Sep 9, 2026 · 1.1M Views
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