In message ,
Alastair writes
Horizon program on BBC 4 tonight at nine o'clock with Dr Helen Czerski
and John Hammond.

It's a repeat IIRC. I think it was first shown on BBC 2. Worth watching
if you haven't seen it.
--
John Hall
"Banking was conceived in iniquity and born in sin"
attributed to Sir Josiah Stamp,
a former director of the Bank of England