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HUGO RIFKIND

Horizon was ‘computer says no’ on a vast scale

With AI looming, the Post Office scandal is a reminder that all automation must be backed up by accountable humans

The Times

‘Computer says no.” Remember? This was Little Britain, back in 2004. David Walliams is in drag as Carol, a bored bank worker behind a screen. Matt Lucas comes in, looking for a loan: £2,000? Carol taps at her keyboard. “Computer says no,” she says. Lucas suggests less. Carol types again. “Computer says no.” Lucas looks nonplussed. “Can I,” he asks, “have a word with the manager?” Tap, tap. “Computer says no.”

That was also the year, funnily enough, that the sub-postmaster Alan Bates first approached the magazine Computer Weekly suggesting they might wish to take a look at the various inhuman travesties the Post Office’s Horizon system, made by Fujitsu, was inflicting upon his peers.

Even 20 years on, it is hard to