Perimeter Institute brings great thinkers from around the world to Canada to share their ideas on a wide variety of interesting and topical subjects. Each event is tailored for the general public and everyone is welcome to attend. No mathematical or scientific knowledge is necessary or assumed.

Public Lectures are held at Waterloo Collegiate Institute. See Location and Parking for details. Attendance is free, but advance tickets are required. Due to the overwhelming response to past lectures, tickets will be honoured until 6:45 pm only. If you have not arrived by 6:45 pm your reservation may be filled by guests on our waiting list, and you may be asked to join the end of the waiting list.

PLEASE NOTE: Tickets available starting at 9:00 am on the specified date, and sell out very quickly. Due to the high volume of traffic to our website the moment free tickets become available, you may have difficulty accessing the site on your first attempt. Please continue to try to log in as this is still the best way to obtain tickets.Due to the demand for tickets to our lectures, a maximum of two (2) tickets may be ordered per account.