About this app

Linear and logarithmic charts side by side with the log axis using proper 1-2-5 tick spacing, plus a table measuring five equal periods in both percentage change and pixels of vertical travel — the comparison that makes the distortion concrete rather than theoretical. Ends with the rule and the consequence: linear for anything held in units, log for anything held as a percentage, and the reason nearly every long-run chart in the news makes the present look unprecedented.