6+ day, 19+ hour ago   (1631+ words) The more useful questions are: How much of the crypto market does the API actually cover? Does one subscription cover both CEX and onchain markets? How far back does the historical data go? Can you stream data rather than constantly…...

1+ week, 4+ day ago   (1023+ words) Every backtest report has a line that says maximum drawdown. Mine said 15.3R. I used that number to size positions for years, and it took me an embarrassingly long time to notice that it is not a risk estimate. It is…...

1+ week, 5+ day ago   (1735+ words) Every AI model runs on tokens. Every API bill is a token bill. Every context window limit is a token limit. Every speed difference between models comes down to how many tokens they process per second. Tokens are the single…...

2+ week, 5+ day ago   (956+ words) A marketing coordinator finds an AI writing tool on a Tuesday. By the end of the week, she'd pasted member survey data into it to draft a newsletter. Names, email addresses, a few open-ended comments about member complaints. Asking first…...

3+ week, 3+ day ago   (966+ words) Every automated system that still has a human with override permissions is not an automated system. It is a hybrid, and the human half never gets profiled. None of that shows up in a trade log. A trade log records…...

3+ week, 3+ day ago   (604+ words) This is not a critique. It's simply the natural default focus for most teams. Everyone knows exploits are expensive, so contract code is audited. Infrastructure is only noticed when it fails in front of users. The problem is that RPC…...

3+ week, 3+ day ago   (1232+ words) Last week about $114 million in Bitcoin drained out of hardware wallets. These are the little offline devices people buy so that exactly this cannot happen. The manufacturer, Coinkite, published an explanation. It says the company has "to assume that someone…...

3+ week, 4+ day ago   (381+ words) In Part 1 (Linked: Part 1), I walked through the mechanics and math of a custom Retrieval-Augmented Generation (RAG) pipeline, including why high-dimensional vector spaces rely on cosine similarity to measure semantic connections. The takeaway was optimistic: replace rigid keyword matching with…...