Director / Editor: Victor Teboul, Ph.D.

Looking inside ourselves and out at the world
Independent and neutral with regard to all political and religious orientations, Tolerance.ca® aims to promote awareness of the major democratic principles on which tolerance is based.

John Lennon wore contact lenses that kept on pinging out. Then he smoked pot and the rest is history

By Steve Vincent, Professor of Optometry and Vision Science, Queensland University of Technology

Lennon’s round glasses are a key part of how we remember him. And the story behind why he wore them in public is part history, part vision science.

Read complete article

~	Operation Knock Knock: On the hunt for dissident voices in Venezuela

~	New study links low incomes, stressed parents and child behaviour – better support would bring lifelong benefits

~	Friday essay: Giant shark megalodon was the most powerful superpredator ever. Why did it go extinct?

~	$84bn lost to housing tax lurks? That would go a long way towards ending the housing crisis

~	Medic at 70: long before Meredith Grey or Doogie Howser, this show shaped the modern medical drama

~	Can AI talk us out of conspiracy theory rabbit holes?

~	TIFF 2024: For Gen Zs and beyond, cinema is about authentic live experience

~	Ozempic, Wegovy, Rybelsus: Are we losing sight of overall health? Here’s what the science says

~	Escalation in West Bank Signals Risk of Further Atrocities

~	Philippines Worst in Asia for Killings of Environmental Defenders