1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35... | Summary and Q&A

TL;DR

Counting can be done in different ways, and our brains naturally perceive the world on a logarithmic scale.

Key Insights

• 💨 Counting can be done in different ways, such as additive counting and logarithmic counting.
• 🧠 Our brains naturally perceive the world on a logarithmic scale, which is believed to be advantageous for survival.
• 🛩️ Our ability to subitize helps us quickly recognize small numbers of objects without counting.
• 👻 The approximate number system allows us to estimate or compare larger quantities with about 15% accuracy.

Transcript

Hey, Vsauce. Michael here. Let's take a moment to recognize the heroes who count. Canadian Mike Smith holds the world record for the largest number counted to in one breath - 125. But the world record for the largest number ever counted to belongs to Jeremy Harper from Birmingham, Alabama. In order to set the record, Harper never left his apartment... Read More

Questions & Answers

Q: How did Jeremy Harper set the record for counting the largest number ever?

Jeremy Harper counted from the moment he woke up until he went to bed, streaming the process over the Internet and raised money for charity. After three months, he reached a million.

Q: How do we perceive loudness?

Our brains perceive loudness on a logarithmic scale. To make a sound twice as loud, you need ten times as many boomboxes. Each doubling requires a hundred times the number of boomboxes, and so on.

Q: What is subitizing?

Subitizing is the ability to quickly recognize small numbers of objects without counting. Our brains can perceive if there are about four or fewer objects in a photo at a glance.

Q: How accurate is our approximate number system?

Our approximate number system is about 15% accurate. We can tell if two amounts are at least 15% different, such as 100 objects and 115 or a thousand and 1,150.

Summary & Key Takeaways

• Canadian Mike Smith holds the world record for counting the largest number in one breath, while Jeremy Harper holds the world record for the largest number ever counted to.

• Our brains perceive the world on a logarithmic scale, allowing us to understand proportions and perceive loudness, among other things.

• The human mind naturally subitizes (or quickly recognizes) small numbers of objects and uses an approximate number system for larger quantities.