Tuesday, December 30, 2025

Lesson from Russia Ukraine war - why Starlink possess a threat to national security because hundreds of Leo satellites may operate drones during war time...

The Russia-Ukraine war has fundamentally rewritten the rules of modern warfare, specifically through the "democratization" of satellite communications. While Starlink was initially hailed as a lifeline for Ukraine, it has evolved into a complex national security threat for several reasons.

The core of the threat lies in the fact that Low Earth Orbit (LEO) constellations like Starlink provide the high-bandwidth, low-latency connectivity required to operate sophisticated drones over vast distances—capabilities once reserved for superpower militaries.

1. Enabling Long-Range "Kill Webs"

Traditionally, drones were limited by line-of-sight radio links or expensive, laggy geostationary satellites. Starlink’s LEO satellites (hundreds of which are overhead at any given time) allow for:

Beyond Line of Sight (BLOS) Control: 

Operators can sit hundreds of miles away from the front lines and control FPV (First Person View) or strike drones via the satellite link.

Real-time Video Feedback: 

The low latency (under 50ms) allows for precise, real-time maneuvering of "kamikaze" drones, making them as accurate as guided missiles but at a fraction of the cost.

Autonomous Swarming: 

Thousands of satellites enable the coordination of drone "swarms," where multiple units communicate and strike simultaneously without relying on vulnerable ground-based towers.

2. The "Dual-Use" Dilemma & Adversary Adaptation

The war has proven that commercial technology is difficult to "gatekeep."

Russian Integration: 

Recent reports indicate Russian forces have begun integrating Starlink terminals directly into their own strike drones (e.g., the Molniya-2). By using black-market terminals, Russia can bypass its own lack of high-speed satellite infrastructure.

The Geofencing Problem: 

It is extremely difficult for SpaceX to disable Starlink for Russians without also disabling it for Ukrainians in contested "grey zones." This creates a scenario where a private company effectively dictates the "digital borders" of a war.

3. Resilience Against Electronic Warfare (EW)

LEO constellations are inherently harder to jam than traditional systems:

Narrow Beams: 

Starlink uses phased-array antennas that create very narrow, directed beams.7 To jam it, an enemy must be almost directly between the dish and the satellite.

Redundancy: 

Because there are thousands of satellites, if one is jammed or destroyed, the terminal simply "handshakes" with the next one in the mesh network. This makes "denial of service" nearly impossible through conventional means.

4. Sovereignty and the "Private Actor" Risk

A major national security concern is that a nation's military effectiveness now depends on a private corporation’s terms of service.

Unilateral Veto Power: 

We saw this when Elon Musk reportedly denied a request to activate Starlink near Crimea for a Ukrainian naval drone strike. This highlights a "threat" where a private individual can interfere with a nation's strategic military objectives based on personal or political views.

LEO Satellites vs. Traditional Military Comms

FeatureTraditional Military Satellite (GEO)Starlink LEO Constellation
LatencyHigh (600ms+); bad for drone pilotingLow (<50ms); enables real-time piloting
VisibilitySingle point of failure; easy to targetThousands of nodes; nearly impossible to "kill"
AccessibilityRestricted to high-budget militariesAvailable to anyone with $500 and a subscription
MobilityRequires large, static dishesPortable; can be strapped to the roof of a car or drone

Bottom Line:


The threat isn't just that the satellites "operate" the drones, but that they provide a ubiquitous, un-jammable internet layer that turns any cheap civilian drone into a precision-guided strategic weapon.

Sunday, December 28, 2025

Windows 11 Recall - the Windfall for Linux - Happy Birthday ... Linus Torvalds...

Happy birthday ... Linus Torvalds...



As we look forward to 2026, a massive change in the computer world is happening in front of our eyes. The Windows 11 Recall is working as the windfall for Linux. Although Linux may not replace Windows completely in the OS sector, but the usage of Linux amongst the techies and non-techies are gaining momentum - and 2026 will be remembered as the year when the shift from Windows to Linux as a viable option will become visible.

 With Windows 10 support ending and Windows 11 requiring a new hardware for its Recall to work, suddenly the Windows users have started looking for alternative and Linux is getting traction. Windows 11 recall has damaged the Trust system between the Users and their computers. Not only this, suddenly PC users are spreading the message that Linux is as user friendly as Windows - which is true but somehow was not visible because of the $soft's FUD system.

Windows 11 needs a new hardware system, and the Windows 10 users are suddenly finding themselves in a dock - but they have discovered that the same Windows 10 hardware can run Linux without any changes. I always say that adoption of tech in the society is only possible when it creates convenience. So far, Windows was dominant in the market because the hardware companies, the PC and laptop manufacturers supported only Windows. Not only this, most of the application software were written keeping Windows as their normal execution system. But that has changed. Now we can do almost everything on Linux that used to be done on top of Windows.

Beside Linux only PC manufacturers, big PC/laptop manufacturers like Dell, IBM have started offering pre-installed Linux based PCs and Laptops. The Steam Deck has proven to millions of gamers that Linux (SteamOS) is a viable, high-performance platform for AAA gaming, removing the biggest historical barrier to switching.

The "2026" Reality Check...

Windows "Push" FactorsLinux "Pull" Factors
Windows 10 Support Ends: Millions of PCs become "unsupported" in late 2025.Polished UX: Modern Linux (like Mint or Fedora) is now arguably as easy to use as Windows.
AI Intrusion: Features like Recall and mandatory Microsoft accounts.Software Parity: Web-based tools (Slack, Zoom, Discord) work identically on Linux.
Ads in Start Menu: Microsoft's increasing use of the OS as an ad platform.Gaming: Proton (Valve) now runs over 80% of the top Windows games.
2026 won't see a total collapse of Windows, but it will likely be the year Linux becomes a mainstream "Third Option." It is moving from being a "hobbyist project" to a saviour for professionals, gamers, and privacy-conscious users who feel alienated by Microsoft's AI direction.

Here we go...

Microsoft sucks...





Sunday, December 14, 2025

India’s Indigenous GPU, OpenGL & Vulkan - A note for Ridit, a school student building real expertise in Computer Graphics...

Dear son Ridit,

You already know C++, Java, Python, understand design patterns, work with 3D graphics, 3D modelling, and Blender. That puts you far ahead of most students your age.


Now let’s talk about something that directly affects your future as a Computer Graphics expert:

India building its own GPU stack

This is not just news. It’s a once-in-a-generation opportunity.

1. What does “India’s Indigenous GPU” actually mean?

A GPU is not just a chip. It is a complete ecosystem:

  • Hardware (shader cores, memory controllers, rasterizers)
  • Drivers
  • Graphics APIs (OpenGL, Vulkan)
  • Compilers (GLSL → SPIR-V → machine code)
  • Tools (debuggers, profilers)

Until now:

  • NVIDIA, AMD, Intel controlled this stack
  • India used GPUs, but did not control them

An indigenous GPU means:

  • India designs the hardware
  • India writes its drivers
  • India implements OpenGL & Vulkan
  • India controls optimization, security, and evolution

This is technological sovereignty, not just engineering.

2. Where do OpenGL and Vulkan fit in?

OpenGL

  • High-level, easier to learn
  • Abstracts many GPU details
  • Perfect for learning graphics fundamentals

You already use this thinking via:

  • Blender
  • 3D pipelines
  • Scene graphs
  • Shaders

Vulkan

  • Low-level, explicit, modern
  • You manage:
    • Memory
    • Synchronization
    • Command buffers
  • Extremely close to GPU hardware

When India builds GPUs, Vulkan becomes critical because:

  • It maps almost directly to GPU architecture
  • It exposes performance and control
  • It is used in:
    • Game engines
    • Simulators
    • Defence & space systems

📌 If you understand Vulkan, you understand GPUs.

3. What does this mean for you, Ridit?

This is the most important part.

You won’t just use GPUs — you can build them

Most graphics programmers:

  • Write shaders
  • Use engines
  • Optimize scenes

But India needs:

  • GPU driver developers
  • Vulkan backend engineers
  • Shader compiler developers
  • Graphics + systems programmers

With your background:

  • C++ ✔
  • Design patterns ✔
  • 3D math ✔
  • Blender pipeline knowledge ✔

You are already aligned.

Blender + Indigenous GPU = Strategic Skill

Blender is:

  • Open source
  • Uses OpenGL & Vulkan
  • Actively optimized for new GPUs

Imagine:

  • Optimizing Blender for an Indian GPU
  • Writing Vulkan backends
  • Improving shader compilation
  • Working on real rendering pipelines

That is world-class engineering, not school projects.

Defence, Space & Simulation will need you

Indigenous GPUs are not for gaming alone.

They are critical for:

  • Flight simulators
  • Missile & radar visualization
  • Satellite image processing
  • Scientific visualization
  • Digital twins

These systems:

  • Cannot depend on foreign GPUs
  • Need deep graphics + systems knowledge

That’s where graphics engineers become national assets.

How should you prepare from here?

You are already strong. Now focus deeper, not wider.

Step 1: Go lower-level

  • Learn modern OpenGL (core profile)
  • Then Vulkan (even if it feels hard)

Hard things = rare skills.

Step 2: Learn GPU thinking

  • What is a draw call?
  • What is a pipeline?
  • What happens between vertex & fragment shaders?
  • How does memory move on GPU?

Think like the GPU, not just the programmer.

Step 3: Study open-source graphics engines

  • Blender source (render pipeline)
  • Vulkan samples
  • Mesa (OpenGL drivers — advanced, but gold)

This is where real knowledge lives.

5. Why your generation matters

Ridit, India missed the CPU revolution.
India missed the early GPU revolution.

But now:

  • Open standards (Vulkan)
  • Open tools (Blender)
  • Indigenous hardware push
  • Strong software talent

This time, India can lead.

And people like you won’t just get jobs —
you will define how graphics works in this country.

Final thought

If someone asks you:

“Why study Computer Graphics so deeply?”

Your answer can be simple:

“Because the future GPUs of India will need people who understand both art and silicon.”

And you are already on that path.

Keep going.

Here's the tech blog of Ridit.


And here's another...



Enjoy...