"...executed a calculation in 200 seconds..."

[Wesley Briggman]

"A team of experts working on Google's Sycamore machine said their quantum system had executed a calculation in 200 seconds that would have taken a classic computer 10,000 years to complete."

How do they know if the answer was correct?

Quantum leap in computing as Google claims 'supremacy'

 

[Shoostie]

How do they know if the answer was correct?

Passwords are typically stored in encrypted form. A typical computer, using a mathematical formula, can encrypt a password in an instant. When you type in the password, your password is encrypted and compared to the encrypted password on file. But, to go backwards, and find the clear password from the encrypted password could take a typical computer thousands of years.

 

[Wesley Briggman]

Passwords are typically stored in encrypted form. A typical computer, using a mathematical formula, can encrypt a password in an instant. When you type in the password, your password is encrypted and compared to the encrypted password on file. But, to go backwards, and find the clear password from the encrypted password could take a typical computer thousands of years.

I'll take your word for it. Thanks.

 

[Deacon]

The answer was 42