When a journalist implied that Canadian Prime Minister Justin Trudeau couldn’t explain quantum computing, the P.M. smiled and called his bluff.
At the Perimeter Institute for Theoretical Physics in Waterloo, Ontario, a reporter asked Trudeau about Canada’s mission against ISIS, but began by saying, “I was going to ask you to explain quantum computing.”
“Very simply, normal computers work by…” Trudeau began to respond, to laughter and applause from the audience. “No, no, no,” he said, “Don’t interrupt me. When you walk out of here you will know more, well, no, some of you will know far less about quantum computing.”
Then he launched into an actual explanation. Watch the video above.
More Must-Reads From TIME
- Jane Fonda Champions Climate Action for Every Generation
- Biden’s Campaign Is In Trouble. Will the Turnaround Plan Work?
- Why We're Spending So Much Money Now
- The Financial Influencers Women Actually Want to Listen To
- Breaker Sunny Choi Is Heading to Paris
- Why TV Can’t Stop Making Silly Shows About Lady Journalists
- The Case for Wearing Shoes in the House
- Want Weekly Recs on What to Watch, Read, and More? Sign Up for Worth Your Time
Write to Tessa Berenson at tessa.Rogers@time.com