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Guides, tips, and insights on legal, financial, and brain science topics

Legal2026-02-20

How Is Child Support Calculated? A State-by-State Guide

Child support varies dramatically by state. Learn how the Income Shares Model works and what factors affect your calculation.

Business2026-02-18

Filing fees range from $40 to $500 depending on your state. Here's everything you need to know about forming an LLC.

Finance2026-02-15

Self-employment tax is 15.3% on top of income tax. Learn how to calculate quarterly estimated payments and maximize deductions.

Brain Science2026-02-12

Average human reaction time is 200-250ms. Learn evidence-based techniques to improve your reflexes and reaction speed.

Brain Science2026-02-10

Most people can distinguish about 1 million colors. Tetrachromats may see up to 100 million. Where do you fall?