If Time since the birth of computer scientist Grace Hopper (118 y) was a standard unit ...

Time since first humans in Europe (30,000 y)...more would be 250 x Time since the birth of computer scientist Grace Hopper

Time since extinction of Neanderthals (30,000 y)...more would be 250 x Time since the birth of computer scientist Grace Hopper

Age of earliest sewing needle (30,000 y)...more would be 250 x Time since the birth of computer scientist Grace Hopper

Time since the earliest bread baking (30,000 y)...more would be 250 x Time since the birth of computer scientist Grace Hopper

Time since the end of the Pleistocene geologic epoch (11,700 y)...more would be 100 x Time since the birth of computer scientist Grace Hopper

Time since the birth of Aristotle (2,400 y)...more would be 20 x Time since the birth of computer scientist Grace Hopper

Time since the birth of Euclid (2,384 y)...more would be 20 x Time since the birth of computer scientist Grace Hopper

Time since the birth of Alexander the Great (2,379 y)...more would be 20 x Time since the birth of computer scientist Grace Hopper

Time since invention of the printing press (584 y)...more would be 5 x Time since the birth of computer scientist Grace Hopper

Time since the publication of Copernicus's sun-centred model of the solar system (481 y)...more would be 4 x Time since the birth of computer scientist Grace Hopper

Time since the publication of Einstein's theory of Special Relativity (119 y)...more would be about as big as Time since the birth of computer scientist Grace Hopper

Time since first Model T Ford launched (116 y)...more would be about as big as Time since the birth of computer scientist Grace Hopper

Time since Concorde Supersonic Airliner entered service (48 y)...more would be 2/5 of Time since the birth of computer scientist Grace Hopper

Time since first Apple ][ computer launched (47 y)...more would be 2/5 of Time since the birth of computer scientist Grace Hopper

Lifespan of horse (30 y)...more would be 1/4 of Time since the birth of computer scientist Grace Hopper

Period of Saturn's orbit (29.5 y)...more would be 1/4 of Time since the birth of computer scientist Grace Hopper

Period of Jupiter's orbit (11.86 y)...more would be 1/10 of Time since the birth of computer scientist Grace Hopper

Is That A Big Number? - The Book

Yes, there's now a book based on these numbers. Oxford University Press: July 2018.