Ballpark — June 18, 2026
Answers to that day's 5 daily estimation questions.
Percentage of the ocean that is unexplored
80%
Most of the deep sea floor is still a mystery.
Brains an octopus has
9 brains
A central brain plus a mini-brain in each arm.
Total length of DNA in a human body
~10 billion miles
If you uncoiled all DNA from every cell and laid it end-to-end.
Characters allowed in a standard SMS message
160 characters
Based on the average length of postcards and telex messages.
Active websites on the internet
200 million
Many more exist but are inactive or parked.