More surprising facts

• The chance of getting every answer right on a 20-question multiple-choice test by guessing is about one in 95 trillion.
• Children learn to speak languages by jamming with proficient speakers rather than only practicing with other beginners.
• Shipping goods in standard metal boxes revolutionized global trade by drastically reducing loading and unloading times.
• Exponential growth is so powerful that a single coin doubling every 25 years would outweigh the universe in 4,600 years.