@fdotinc
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@fdotinc imma firin mah laser #tech #engineering #robotics #startup #laser
Trending short videosBehind the scenes tech explainer
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Performance
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- Engagement
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- Outlier
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- Length · 15 Sept 2026
- 1:36
Video #41969 · Vlog
Behind the scenes tech explainerfrom @fdotinc
[01]
Overview
The creator gives a tour of their deep tech startup, starting by explaining their main product: a subsea laser communication device. He details how it uses lasers for high-speed underwater data transfer, shows various prototypes and CAD models, and explains the technical challenges they've overcome. The video then transitions to the company's origin story, from working in a garage to getting funded through a tweet, and concludes with a call-to-action for other founders to apply to the program that supported them.
[02]
Simple outline
- 1Present mysterious object
- 2Explain function and value
- 3Show evolutionary progress
- 4Reveal the human story
- 5Deliver endorsed call-to-action
[03]
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Classification
Format
Concepts
Elements
Account
[05]
Hook analysis
What stops the scroll in the first 3 seconds
Title hook · 35%
what is this thing?
Verbal hook · 25%
What is this thing?
Visual hook · 40%
An extreme close-up of a complex, spherical tech device with multiple lenses, being handled by a person, creating immediate curiosity about its function.
[06]
Hook template
Steal this for your own video
An extreme close-up of a being held — no context, no label, just the object filling the frame.
- — An extreme close-up of a custom-wound electromagnetic coil being turned slowly in someone's fingers — no context, no label, just the object filling the frame.
- — An extreme close-up of a translucent 3D-printed organ model being held up to light — no context, no label, just the object filling the frame.
- — An extreme close-up of a hand-carved wooden gear mechanism rotating — no context, no label, just the object filling the frame.
[07]
Hook and payoff
The promise the opener makes, and how the video pays it back
Hook
A direct, simple question ('what is this thing?') about a visually intriguing and complex object, creating an immediate curiosity gap.
Payoff
The creator leverages the credibility and aspirational journey just established to endorse a program, directly linking their success to it and prompting the viewer to follow a similar path.
[08]
Narrative framework
The structural pattern this video runs on
Framework
The Object-to-Origin Funnel
Use a single, complex object as a gateway to tell a larger story about its creation, its creators, and the ecosystem that supported them, culminating in a call to action.
- 1
The High-Concept Reveal
Provide a concise, impressive-sounding name or category for the object to establish its importance.
- 2
The Simple Analogy
Break down the object's complex function into a simple, relatable analogy (e.g., 'flashes the light on and off real fast') to make it understandable to a broad audience.
- 3
The Value Proposition
List the tangible benefits or capabilities of the object, answering the implicit question 'What does it do?'
- 4
The Evolutionary Context
Show or describe previous, less-advanced versions of the object to establish a history of development and progress.
- 5
The 'Then vs. Now' Contrast
Explicitly compare the old version with the new, highlighting a key improvement (e.g., miniaturization) to demonstrate innovation.
- 6
The Secret Sauce
Explain the unique technical or conceptual breakthrough that makes the current version possible, differentiating it from the standard industry approach.
- 7
The Quantum Leap Metric
Quantify the improvement with a dramatic, easy-to-understand metric (e.g., kilobits vs. gigabits) to make the breakthrough feel concrete and significant.
- 8
The Founder's Journey
Shift focus from the object to the people who made it, telling a brief, relatable story of their humble beginnings ('parents' garage').
- 9
The Catalyst Moment
Recount the specific event or 'big break' that propelled the project forward, creating an aspirational and serendipitous story beat.
Themes
Techniques
Trends
Post caption
imma firin mah laser #tech #engineering #robotics #startup #laser
Text overlays
title · beginning
what is this thing?
informational · beginning
subsea communication device
informational · beginning
to communicate underwater
informational · beginning
basically flashes a light on & off
contextual · beginning
video
contextual · beginning
3D models
contextual · beginning
point clouds
informational · beginning
you need to do a subsea inspection
contextual · middle
this is one of our older iterations
contextual · middle
would be underwater
contextual · middle
pointing at each other?
informational · middle
they just have to be generally facing
informational · middle
to aim at this tiny little target
informational · middle
the modems inside take over & do the work
informational · middle
now 4 versions
informational · middle
much much smaller
contextual · middle
this is one of our smaller computes
informational · middle
takes up this entire floor
informational · middle
consolidated into that smaller one
contextual · middle
optical head part of it
informational · middle
laser communication technologies
informational · middle
infrared lasers
informational · middle
telecom & wireless satellite links
informational · middle
visible light like blue & green
informational · middle
technology really exists
informational · middle
invisible to the human eye
informational · middle
how quickly it flashes
informational · middle
communicate at high speeds underwater
informational · middle
state of the art is acoustic which is kb/s
informational · middle
to megabits or even gigabits
contextual · end
how long does it take to make an iteration of this?
informational · end
2 weeks
informational · end
design, refining design, printing prototypes, testing
contextual · end
just sprawled out in my parents garage
contextual · end
(lead investor @ F.inc) tweeted at Hubert
contextual · end
told him what we were working on
contextual · end
the next week & we've been building here
contextual · end
like a year now
call-to-action · end
Apply! Blueprint is a program for frontier tech founders We offer $150k in funding upfront 3mo of office hours, talks with exited founders, and direct support from our team on GTM, Media, Fundraising, Product, etc + up to 1 year of dedicated space in our hardware facilities in San Francisco
call-to-action · end
(link in bio)
Transcript
Is this thing? This is a subsea communication device. It uses lasers to communicate underwater. It basically flashes the light on and off real fast. It can transmit video. It can transmit three d, like, models, point clouds, anything that you need to do a subsea inspection properly. What's that over there? This is one of our older iterations of the hull. So two of these would be Yeah. Underwater pointing at each tier. Pointing at each other. They just kinda have to be generally facing each better. In order to aim at this tiny little target, which is like a millimeter or a millimeter squared, the modems inside can take over and do the rest of the work. We've gotta have done now four versions. The fourth one is coming out much, much smaller. This is one of our smaller, computes. I can show you the the larger one over there. It takes up this entire floor. All of this have been kinda consolidated into that smaller one. This is the optical head part of it. Worst, if not all, laser communication technologies is built around using infrared lasers, the standard for telecom and wireless satellite links and visible light, like blue and green. None of that technology really exists. It's pretty much invisible to the human eye on how quickly it flashes. Right now, you can't really communicate at high speeds underwater because the state of the art is acoustic, which is kilobits per second. This will get us to megabits or even gigabits. Make the assemblies? Yeah. How long does it take to make an iteration of this? Like, two weeks. Concept design, refining design, printing prototypes, testing. And we were basically best, like, sprawled out in my, like, parents' garage, more or less. We did at Hubert, told them what we tier working on, and then we showed up here the next week, and we've been building here for, like, a year now. Building in deep tech, you should apply to Founders Inc. Do you really believe that? I do. No. That is how I always sound, you know, even when I when I really believe something.