"Britain has a larger economy when GDP is converted into US dollars at current exchange rates, but Russia has a substantially larger economy when measured at purchasing power parity (the IMF’s 2026 projections put Russia at approximately $7.53 trillion against Britain’s $4.72 trillion)"
Brent, before celebrating somebody being schooled, it's generally advisable to establish what subject is being taught.
Yes, Britain has a larger economy when GDP is converted into US dollars at current exchange rates, but Russia has a substantially larger economy when measured at purchasing power parity (the IMF’s 2026 projections put Russia at approximately $7.53 trillion against Britain’s $4.72 trillion) and, globally, Russia ranks fourth on that measure (above Japan and Germany), and Britain only tenth (above Turkey and Italy).
Russia uses rubles (which are deliberately devalued) and Britain sterling (long overvalued), and PPP adjusts for differences in domestic prices, allowing a comparison of the volume of goods and services produced, i.e. Mr Putin isn't buying his rockets in dollars or sterling, he's buying them in rubles.
The schoolmaster might therefore postpone the applause until he has finished reading the table.