What is reinforcement learning?
Reinforcement learning teaches software by trial, error and a score. Learn the five words behind it, why the reward is the hard part, and where it already runs.
Format
Format: Explainer
Evergreen “What is X” pages for a 12-year-old.
What is ransomware?
Ransomware locks up your files and sells you the key. Learn how an attack really runs, why paying rarely works, and the checks that decide whether you recover in hours or weeks.
What is quantum error correction?
Qubits are too fragile to compute with on their own, and you cannot copy or even look at one. Here is the trick that fixes errors without reading the data.
What is quantum computing?
A quantum computer does not try every answer at once. It steers waves so wrong answers cancel and the right one grows. Here is how that works and what it is for.
What is post-quantum cryptography?
A large quantum computer would break the encryption that guards banking and the web. Here is what replaces it, why the change started early, and what to check first.
Explainer/Cybersecurity/Kenya
What is phishing?
Phishing is the scam behind most break-ins, and it aims at you rather than your computer. Learn how it works, how to spot a fake message, and what to do if you have already clicked.
Explainer/Artificial intelligence
What is open-source AI?
Open-source AI means models you can download, run and change yourself. Learn what actually gets published, why open weights and open source are different, and how to check a model.
What is network slicing?
Slicing turns one 5G network into several virtual ones, each with its own promise. Here is how a slice is built, where it is already used, and the one thing it can never do.
What is network latency?
Latency is the wait on a network, and it is not the same thing as speed. Here is what the number means, what makes it grow, and how to measure your own in one minute.
Explainer/Semiconductors & chips
What is Moore’s Law, and is it over?
Moore's Law said the number of transistors on a chip doubles about every two years. Here is what Gordon Moore really claimed, which half of it has stopped, and what makes chips better now.
What is Model Context Protocol (MCP)?
MCP is one agreed way to plug an AI assistant into your files, tools and databases. Learn how the host, client and server fit together, and what to check before you connect one.
Explainer/Fintech & mobile money/Kenya
What is mobile money?
Mobile money turns a phone number into a payment account that any shop can top up. This page explains cash in, cash out, why the agent matters most, and how to avoid the common frauds.