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LLMs: Past, Present, and What's Next - A Critical Overview

Jan 14, 2026 · 15 min read · AI LLLM GPT CoT

I mentioned in a previous article that a model is composed of small numbers in a multi-dimensional matrix. To quote also a video: “Disassembled human knowledge spread across thousands of dimensions in a virtual void. Each path, similar in concept to a synapse, striking words in a given sequence resembling thoughts. Wi…

Exploiting Shadow Data from AI Models and Embeddings (Patrick Walsh) + notes

Nov 21, 2025 · 13 min read · ai llm vec2text rag exfiltrate prompt injections

This one shows the recent talk at DEF CON 33 - Exploiting Shadow Data from AI Models and Embeddings - Patrick Walsh One of the main takeaway given was that as soon an AI touches sensitive information it can no longer be called fully in your control. Sensitive data can be copied from a protected system into prompts/res…

Combined (Vectorized) I/O in PostgreSQL 17

Sep 28, 2024 · 5 min read · postgresql database performance io

PostgreSQL, like most databases, operates using fixed-size pages of data, each 8 kilobytes in size. When reading data, the database fetches these pages from disk. Background In a database system, a page is the fundamental unit of data storage and retrieval. Most databases, including PostgreSQL, organize data into fixe…

Network Automation Notes

Jan 11, 2020 · 9 min read · network automation networking juniper

It’s a good thing to automate the boring stuff. It also pays well to know what exactly there is to “automate”. Cross vendor support for network programmability is a bit behind and even though there are standards in several RFCs, core networks can be slower to respond to changes. Rightfully so. Yet if you would happen …

Database Notes part 2

Sep 23, 2019 · 11 min read · database data models keys normalization clustering big data

In the last part we outlined notions of what a database is, how a database fits inside the CAP theorem, general notions of a query and a schema, how indexes assist with faster searching, a brief overview of relational and non-relational databases, and how loose and tight coupling between a database and its front end a…

tup build system and library manufacturing

Jun 22, 2019 · 8 min read

I’m writing this to jot down what is necessary in order to make an automated build process and also debug code as is written based on tup, lldb / gdb pointers and programming in c. Basic idea is to have a workflow where feedback is instantanous by the build system, have warning set to maximum, eventually perform lint …

Databases Notes

Sep 2, 2018 · 8 min read · databases sql notes

What is a database The purpose of a database is to store and retrieve information about records. A database is a mechanism that allows for the reading and updating of information. It’s a set of data. A rock or a piece of paper can be a database, or a CSV file could be considered a low-end database. As the amount of in…

Python Classes

May 25, 2015 · 1 min read · python programming

A short intro on classes in Python with code snippets and notes taken from the python docs. Class A blue print for an instance. Instance A constructed object of the class. Type Indicates the class the instance belongs to. Attribute Any object value: object.attribute. Method A “callable attribute” defined in the class.