The world's leading thinkers debate the biggest ideas at the world's first fully interactive online ideas festival.

At HowTheLightGetsIn we bring you the planet's greatest minds. From top scientists to leading philosophers, from Nobel prize-winning economists and physicists like Paul Krugman and Frank Wilczek to cultural stars like Martin Amis and Deborah Levy, alongside politicians, from leaders of the major parties to iconoclastic rebels, plus journalists from David Aaronovitch to Emma Barnett. HowTheLightGetsIn gathers them together in an annually unrivalled line-up of debates and talks - and Online 2020 is set to top them all.

View Debates


Paul Krugman

steven pinker


Patricia Churchland


Daniel Kahneman


Sabine Hossenfelder

Sabine Hossenfelder


Sean Carroll

Carlo Rovelli

Carlo Rovelli

sally phillips 3

Sally Phillips

will self


jim al khalili photo

JIM AL-Khalili

David Spiegelhalter

David Spiegelhalter

BE6B4A82 327A 4D40 8E14 C0FED32C7519 86641 00001179FC4AD98B

Adjoa Andoh

claire fox

Claire Fox

Martin Rees

Martin Rees

Nick Robinson

Nick Robinson

paul mason

Paul Mason

jess phillips

Jess Phillips

david nutt 2

David Nutt

19 11 26. Vince Cable

Vince Cable

20 01 21.Laura Mersini Houghton

Laura Mersini-Houghton

20 02 27. grace blakely

Grace Blakeley

Peter Tatchell 1 1

Peter Tatchell

simon critchley re

Simon Critchley

20 03 11.Malcolm Rifkind

Malcolm Rifkind

Nancy cartwright

Nancy Cartwright

Philip Goff

Philip Goff

jim baggott

Jim Baggott

20 02 27. kehinde andrews
20 01 22 Kehinde Andrews banner

Kehinde Andrews

0 Raymond Tallis

Raymond Tallis

Sunetra Gupta

Sunetra Gupta

Deirdre McCloskey

Deirdre McCloskey

Hugh Montgomery

Hugh Montgomery


Matthew Syed

20 03 11.Reneta Salecl

Renata Salecl

Mary Ann Sieghart

Mary Ann Sieghart

tim crane

Tim Crane

20 04 23. Kate Devlin

Kate Devlin

David Goodhart

David Goodhart

20 01 21.Bernardo Kastrup

Bernardo Kastrup

Mark Littlewood

Mark Littlewood

Anne Johnson

Anne Johnson


Amélie Saintonge


Soma Ghosh

20 02 27. Yassmin Abdel Magied

Yassmin Abdel-Magied

PeterSjostedt H

Peter Sjostedt H

annemarie 365x240

Annemarie Ward

john mcdonnell

John McDonnell


Meg Rosoff

mark salter

Mark Salter

20 01 21. Gunes Taylor

Güneş Taylor


Ayesha Hazarika

Isabel Hilton

Isabel Hilton

20 02 27. NEW kathryn jeffs

Kathryn Jeffs

David Malone

David Malone

Julian Baggini 1

Julian Baggini

Bjorn ekeberg

Bjørn Ekeberg

victoria brooks

Victoria Brooks

Nancy Groves

Nancy Groves


Caroline Hickman

Danielle Sands

Danielle Sands

shahida bari

Shahidha Bari

Philip Collins

Philip Collins


John Ellis

Paul Muldoon

Paul Muldoon

20 02 06. Ron Purser

Ron Purser

Milbank John

John Milbank


Danny Penman

Barry C Smith resized

Barry Smith


Susan Schneider

Peter Hitchens


Michael Levitt

Heather Douglas