The millions of people who read and loved What If? still have questions, and those questions are getting stranger. Thank goodness xkcd creator Randall Munroe is here to help.

This November, the former NASA roboticist, Sunday Times Number 1 and international bestselling author and cartoonist will be live on stage giving serious scientific answers to absurd hypothetical questions - celebrating the 10th Anniversary edition of his publication, What If? - revised and annotated with brand-new illustrations and answers to important questions you never thought to ask.

What if you tried to hit a baseball pitched at 90 percent the speed of light? How fast can you hit a speed bump while driving and live? If there was a robot apocalypse, how long would humanity last? What if everyone only had one soulmate? What would happen if the moon went away? His responses are masterpieces of clarity and hilarity, complemented by his signature xkcd comics.

Before you go on a cosmic road trip, feed the residents of New York City to a T. rex, or fill every church with bananas, be sure to get your ticket for this practical guide to impractical ideas. Filled with 10x the bonkers science, boundless curiosity, and with the opportunity to ask your own questions on anything from swing-set physics to airplane-catapult design, this event will appeal to inquisitive thinkers of all ages.

Top price tickets will include a signed copy of the 10th Anniversary Edition of What If? (RRP £25).

Age Restriction

Ages 8+. Under 16's with an adult 18+

Access Bookings

Limited wheelchair and companion spaces. Please contact the box office on 0131 228 1155 or by emailing boxoffice@edinburgh.gov.uk in order to book.