Is That A Big Number?

If Time since first iPhone launched (15 y) was a standard unit ...

Time since first humans in Europe (30,000 y)...more would be 2000 x Time since first iPhone launched

Time since extinction of Neanderthals (30,000 y)...more would be 2000 x Time since first iPhone launched

Age of earliest sewing needle (30,000 y)...more would be 2000 x Time since first iPhone launched

Time since the earliest bread baking (30,000 y)...more would be 2000 x Time since first iPhone launched

Time since first humans in Americas (15,000 y)...more would be 1000 x Time since first iPhone launched

Age of earliest swords (3,700 y)...more would be 250 x Time since first iPhone launched

Time since the birth of Dante Alighieri (759 y)...more would be 50 x Time since first iPhone launched

Time since the birth of Newton (381 y)...more would be 25 x Time since first iPhone launched

Time since the invention of the transistor (76 y)...more would be 5 x Time since first iPhone launched

Period of Halley's Comet's orbit (75.3 y)...more would be 5 x Time since first iPhone launched

Lifespan of horse (30 y)...more would be 2 x Time since first iPhone launched

Period of Saturn's orbit (29.5 y)...more would be 2 x Time since first iPhone launched

Lifespan of a cat (15 y)...more would be about as big as Time since first iPhone launched

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