MIG wrote:
According to the London ****e, there will be Oysters on Overground by
next May.

Whatever one might interpret that to mean, it's all Boris Johnson's
idea.

Why didn't anyone think of it before (whatever it means)?

First Great Western are to be the first according to the radio.
Boris has done it so fast, it's a pity Ken did not try it (;-)

--
Tony the Dragon