Subscribe now

Columnist and Physics

How can we prove the world is really quantum mechanical?

A 2021 paper has got physicists discussing whether our inability to use classical physics to describe reality on a quantum scale is a human failing - and what proof is necessary to show that the world really is quantum mechanical, says Chanda Prescod-Weinstein

By Chanda Prescod-Weinstein

26 April 2023

New Scientist Default Image

How can we prove the world is really quantum mechanical?

Alamy Stock Vector

I ALMOST didn’t write this column because I worried that it might give people the wrong impression about quantum mechanics. So let me start by saying that I wholeheartedly believe that quantum mechanics is a correct description of reality on a micro scale. If there are limits to how correct it is, those are likely to involve questions about how to combine quantum mechanics and gravity, which we have so far been unable to do with a testable model.

Here …

To continue reading, subscribe today with our introductory offers

View introductory offers

No commitment, cancel anytime*

Offer ends 14th June 2023.

*Cancel anytime within 14 days of payment to receive a refund on unserved issues.

Inclusive of applicable taxes (VAT)

or

Existing subscribers

Sign in to your account