In this episode: 

• Can you create an order from a numbered menu that is always comprehensible to the server?
• When someone is behind you as you open a door, what is the polite distance to wait for them? 
• And, the cards are on the table. 

As always, if you've got a problem or a solution, hit us up on our website aproblemsquared.com.    Please send in your Blue Dot problems, and we may just solve it live on stage. Just post your problem with the tag 'Blue Dot' to aproblemsquared.com - Do it now!   If you want to come and see us at Blue Dot, you can catch us on Friday, and can buy tickets here: https://tinyurl.com/BlueDotTickets

You can find more about Emma Haruka Iwao's record breaking Pi calculation here: https://cloud.google.com/blog/products/compute/calculating-100-trillion-digits-of-pi-on-google-cloud 

And, of course, if you want want more from A Problem Squared, come find us on Twitter and Instagram.