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USER SPACE: Application Process (Zero Switches)KERNEL SPACEio_uring (SQ / CQ)Direct DMA (splice)
Technology
Signal Insight3 min read

Zero-Copy Networking in Linux with io_uring and eBPF

Architecting zero-copy Linux networking: eliminate kernel-user space memory copies, reduce CPU context switches, and maximize throughput with io_uring and eBPF.

SI
Systems & Infrastructure
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SOLENOIDD-T Plasma150M °C²H + ³H → ⁴He (3.5 MeV) + n (14.1 MeV)
Science
Signal Insight12 min read

Nuclear Fusion: Engineering the Star in the Jar

A technical evaluation of controlled fusion: tokamak magnetic confinement, laser ignition breakthroughs, high-temperature REBCO magnets, and commercial scale.

SI
Science & Physics
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GRAVITATIONAL LENSINGEinstein Radius θ_EROTATION CURVEObserved (Flat)Keplerian (v ∝ r^-½)Distance r (kpc) →
Science
Signal Insight12 min read

Dark Matter: The Evidence, the Candidates, and the Search

Why 85% of cosmic matter is invisible: galactic rotation curves, the Bullet Cluster, Cosmic Microwave Background anomalies, and the hunt for WIMPs and axions.

SI
Science & Physics
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Feed-Forward Network (SwiGLU)Multi-Head Self-Attention (MHA)Query QKey KValue VAttention(Q,K,V) = softmax(QKᵀ / √d_k) · V
AI & ML
Signal Insight14 min read

How LLMs Actually Work: Under the Hood of the Transformer Architecture

A rigorous mathematical explanation of decoder-only transformers: self-attention mechanisms, RoPE positional embeddings, SwiGLU activations, and KV caching.

SI
AI & Machine Learning
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Training CAPEX (Fixed Cost)Inference OPEX (Tokens)Crossover ROICumulative Query Volume →
AI & ML
Signal Insight13 min read

Training vs. Inference Economics: The True Cost of Running LLMs

A financial and hardware engineering breakdown of frontier AI models: memory bandwidth limits, KV cache sizing, FP8 quantization, and cloud unit economics.

SI
AI & Machine Learning
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