Exclusive media partner: The New York Times


Receive regular updates about forthcoming events and other news from Intelligence Squared


You have been added to our mailing list and will now be among the first to hear about events.


What is a cookie?

We may use ‘cookies’ while you access the Site. A cookie is a small file which can be downloaded on a device when you access the Site and is then sent back to the Site each time you access it. Cookies are useful because they allow us to recognise your device and your user preferences. We use cookies to set users’ preferences, gather basic tracking information (such as login and password), date, time of visit and preferences and monitor the presentation of the Site. This information allows us to personalise the user experience and to improve the quality of the Site navigation. We also use analytical cookies, which allow us to recognise and count the number of users on the Site and to see how users move around the Site when they are using it. This helps us improve the way the Site works, for example by making sure users find easily what they need. Please note that advertisers on the Site may also deploy cookies and web beacon technology to measure and improve the effectiveness of advertising to their clients. If you do not want cookies on your computer, you can remove them by changing your browser settings.

Which cookies do we use on our site?

Our Cookies

  • PHPSESSID – The PHP Session ID – Widely used by sites
  • tpc_XXXXXXXXX (tpc_1511433536) – One created each time you submit an anwser to a new poll, used so that we can remember to show the poll results on subsequent page loads/visits


Google Analytics Cookies

  • 1P_JAR
  • HSID
  • NID
  • SID
  • SSID


Eventbrite Cookies

The following cookies are created when you view an event and the EventBrite Embedded Checkout is loaded. There will be slight variation of these cookies between events.

  • evb_ao_create_viewed
  • acceptedCookieHeader
  • ebGAClientId
  • mgaff51238448579
  • SP
  • gid
  • mgssl
  • mglogin2
  • PWE
  • optimizelySegments
  • optimizelyBuckets
  • optimizelyEndUserId
  • G
  • mglts
  • AS
  • mginvites
  • mgrefby
  • janus
  • SS
  • eblang
  • csrftoken
  • cm
  • gcl_au
  • mgemail
  • mkto_trk
  • mgref
  • _ga
  • ******