Lounge›Insight
Key concepts and the latest issues in crypto, stocks and AI, explained
Lounge›Insight
Key concepts and the latest issues in crypto, stocks and AI, explained

Portfolio diversification spreads money across investments that do not move in lockstep. See the two-asset formula worked out step by step, sample allocations by risk profile, and a simple checklist for your own portfolio.

Start retirement investing with your income gap, not a product. Learn a three-step savings estimate, how time horizon and risk tolerance shape your stock and bond mix, when to rebalance, and the 2026 US contribution limits.

About 82% of LG Innotek's revenue comes from its camera-module-led optical solutions unit, and one customer believed to be Apple took 77.9% of first-half 2026 sales. Here is how the business is structured and which numbers matter in each quarterly report.

A plain-English guide to recursive self-improvement (RSI) in AI, using two October 2026 preprints, MASS from Sakana AI and UC Berkeley and RSI-Anything, to separate measured gains from hype.

Can small AI models spread across cheap smart devices, and can a model hide what it knows from safety evaluators? Here is what three recent studies actually tested, and what they did not.

LTX-2.5 is an open-weight model from Lightricks that turns text, images, video and audio into clips with synchronized sound. Here is what changed in 2.5, what hardware the docs ask for, and how the community license treats commercial use.

Buying an ETF works much like buying a stock, but a fund deserves a few extra checks. Here is the common workflow across brokerage apps, plus the order-type, cost and timing details that trip up first-time buyers.

The BF16 weights are around 50GB, so most people run Qwen3.8-27B as a community GGUF quant. Here is how each quant level trades file size against quality, and what fits on 16GB and 24GB GPUs or Apple Silicon.

A practical guide to checking U.S. earnings report dates: how earnings calendars label pre-market and after-hours releases, why some dates are only estimates, and how to verify results in SEC filings.