Replay
Records what already happened. You watch the mistake after you've made it — and after your body has paid for it.
- Sees pixels, not forces
- Compares you to population averages
- Can only tell you what went wrong
AETERNA · by idur.ai
Aeterna doesn't record your game — it simulates your body. A physics model built from your own movement, on machines inside your club, that rehearses tomorrow's session before you play it.
Built on NVIDIA · backed by the best
NVIDIA Innovation Lab
AWS Startups
Jetson · BodyPose3DNet
Cosmos · Modulus physics
Aeterna isn't NVIDIA-adjacent — it's built from the NVIDIA stack: real-time on-device inference on Jetson, physics "what-if" on NVIDIA Modulus & Cosmos, live on-prem in U.S. clubs today.
The shift
Every camera in sport looks backward. Aeterna is the first system in your club that looks forward.
Records what already happened. You watch the mistake after you've made it — and after your body has paid for it.
Simulates what will happen. A physics engine runs your next session on your digital double first — so your body never has to be the experiment.
Video tells you what happened. Aeterna tells you what happens next.
How the double works
Three stages, all inside the building. Cameras never stream out; the physics never generalizes. Everything downstream is computed from one source of truth — you.
01 / CAPTURE
Court cameras feed NVIDIA Jetson and RTX hardware racked inside your facility. Pose is locked in 85 milliseconds at 30 frames per second — and the video never leaves the room.
02 / MODEL
From your movement alone, the BLM reconstructs the forces flowing through 34 joints — how load travels from footwork through hip, trunk, shoulder, elbow, wrist. Your double, not a population template.
03 / SIMULATE
An Omniverse/Cosmos-style physics engine runs scenarios against your double: more training, new gear, a heavier week. You see the consequence before your body does.
The double in action
Every insight below is computed from the same simulation of your body — delivered at the kiosk, minutes after you step off the court.
A readiness score before every session — where your load is stacking up, and when to back off.
A routine built for today's stiffness and yesterday's load — not a generic five minutes.
Drills and gym work prioritized by which link in your kinetic chain gives the most return.
Return-to-play tracking that shows when the injured side is truly carrying load again.
Simulate racket weight, balance, and grip against your arm's real load tolerance before you buy.
Play the sport you love at 45, 60, 75 — a plan tuned to keep joints in their safe envelope for decades.
Ask "what if" — the simulation answers with your projected load and performance, not a guess.
Power, reach, and efficiency benchmarks that improve session over session — tracked in one grade.
The same double, tuned for competitive players — margins, ceilings, and tournament peaking.
Physics what-if
"If I strengthen my backhand, add two gym sessions, and play one more night a week — what happens to my elbow?" Aeterna runs that future on your double: bounded, physical, and computed from your own mechanics. Not a lookup table. Not someone else's body.
ILLUSTRATIVE OUTPUT · COACHING GUIDANCE, NOT MEDICAL ADVICE
For facility owners
Aeterna is a member-retention engine wearing a wow-factor costume. The first-session scan sells memberships. The weekly readiness score keeps your 45+ players — the ones with the highest lifetime value and the highest injury anxiety — coming back for years.
Payback
—
months
Year-1 ROI
—
return on cost
Net annual gain
—
gross − cost
Breakeven
—
members retained
Where the value comes from
ILLUSTRATIVE — RETENTION LIFT IS A TRIAL TARGET, NOT A GUARANTEE; VALIDATE WITH YOUR CLUB'S REAL NUMBERS.
Private by design · VisionShield
Aeterna runs on VisionShield, idur.ai's on-device trust layer. Members' bodies are the most personal data a club will ever touch — so the architecture makes the safe path the only path.
Every frame is analyzed on Jetson and RTX hardware inside your facility. No cloud upload of video, ever — the raw footage is discarded after the pose is extracted.
Members opt in explicitly, per capability, before a single scan. Consent is recorded, revocable, and enforced by the pipeline itself — not by a policy document.
Every report Aeterna produces is cryptographically signed by VisionShield at the edge. What the member sees is verifiably what the model computed — tamper-evident, auditable.
ON-PREM · CONSENTED · SIGNED
Our guarantee · for sports clubs
Four things we stand behind, in writing, for every facility that puts an Aeterna box on the wall — from the first walk-in scan to the last byte of member data.
A first scan at the front desk is the most jaw-dropping sixty seconds a prospect will spend in your building. The digital double converts curiosity on the spot — and the week-over-week readiness story it tells keeps that member renewing long after the tour.
No competing facility can hand a member a physics-grade digital double of their own body. It's a differentiator that can't be matched by adding another court or repainting the lobby — members choose you for it, and they stay for it.
Pickleball, padel, tennis — and whatever your members ask for next. Aeterna models the human body, not the sport, so one platform covers every court you run today and every program you launch tomorrow.
We never take data out of your building, and we never store it. Every frame is processed on the Aeterna box on your premises; raw footage is discarded the moment the body-model is extracted. No cloud, no archive, nothing to breach.
FASTER CONVERSION · TRUE DIFFERENTIATION · EVERY SPORT · DATA STAYS HOME
Risk score
22/100
Tissue / tendon health
91/100
Functional age
41 vs 52 actual
Session grade
Load well-distributed. Left-hip chain trending up 3 sessions straight.
Proof, not promises
Every session ends in a signed scorecard: readiness, tissue health, functional age, and a grade — each number traceable to physics computed from that member's own movement.
Grounded in a biomechanical injury encyclopedia — 13 racket-sport injury patterns, built on peer-reviewed sports-medicine literature. Readiness and coaching guidance, not medical diagnosis.
Sudhanshu “Sid” Harshavat
Founder & Principal Architect
The founder
I'm 45+, ranked #42 in the United States in 40+ pickleball, a US Open racquetball champion, and a highly ranked padel player in Illinois. This was built for my cohort because it is my cohort.
Every player I compete with is one bad swing from a six-month sideline. I watched people who had organised their weeks around court time for decades disappear from the game — not because they stopped loving it, but because of a shoulder, a knee, an Achilles. The technology to see those injuries forming already existed; it just wasn't available to anyone outside professional sport.
"Elite athletes get a digital double. Everyone else gets an ice pack. There is no technical justification for that gap any more — only an access one."
So I spent a year closing it. Aeterna is a physics model of the body running entirely on NVIDIA hardware inside the club — 34 joints, force and torque chains, 13 fatigue buckets, and a what-if engine that rehearses your next session before your body has to. Nothing leaves the building. My background is solution and security architecture, so the threat model came first, not last.
The part I'll remember isn't the stack. It's watching a fifty-year-old player walk off court with a warm-up built for their body, and come back the next week moving better. That's the whole point — give every player their own double, so the decision to keep playing stays theirs.
Kiosk demo · 20 minutes
A live scan, a signed report, and your club's ROI model on real numbers — we'll show you the whole loop in one session.
Installation · simple by design
No construction, no server room, no cloud contracts. Aeterna is one compact NVIDIA-powered unit on your wall — feed it a clip or a camera, and it hands back an instant digital-double analysis without a single frame leaving the building.
One compact NVIDIA-powered unit installed at your facility — that's the entire physical footprint. No server room, no rack, no construction.
You don't need to install cameras to start. The box analyzes footage — it doesn't care where the footage comes from.
A member or coach uploads a clip from any source — a phone, an existing club camera, a recorded match — and gets an instant digital-double breakdown.
For real-time, on-court analysis, connect a video camera feed to the on-prem box. All processing stays local, on your hardware.
All analysis runs on the box; raw footage is discarded the moment the body-model is extracted. No cloud, no storage, ever.
AETERNA PROVIDES TRAINING & READINESS INSIGHT — NOT A MEDICAL DEVICE · ALL ANALYSIS RUNS ON YOUR PREMISES