That's the 5 second version!
I think Eurobank has to be in the one-minute version. It is 10% of Fairfax's market cap, bigger than Apple as a proportion of Berkshire's market cap (about 7%, now.) Fairfax India and the other Indian holdings (Digit, Thomas Cook, ICICI Bank, etc.) are a similar size, and Atlas (shipping) is a bit smaller, but close to another 10%. A variety of fully-owned private companies, mostly Canadian, is also maybe roughly 10%, if you include Recipe, Sleep Country, AGT, Bauer, ... what else am I missing? And then there are the minority public equity stakes in the USA, worth about 5% of Fairfax's market cap: Orla, Occidental Petroleum, CVS, the dreaded BB, Cleveland Cliffs, Kennedy Wilson and Kraft-Heinz being the big ones.
So, a stab at the 60-second version:
A $40b insurance conglomerate with some similarities to Berkshire, growing BV at 18% for the last 40 years, trading at 1.6 times understated book value and 10 times earnings, with diversified income streams from insurance underwriting, a $39b bond portfolio, $4b stakes in Eurobank (Greek banker), $2b in Poseidon (shipping), $4b (?) in Indian investments (Fairfax India, Digit) and several billion in a portfolio of fully owned Canadian companies (restaurants, mattress retailing, agricultural products, etc.). Investment returns heavily levered by ability to invest $37b (end of 2024) of other people's money (insurance float) in addition to its own $23b in equity.