Alasdair Keane visits the Olympic training centre in Oslo.
Concerns were raised by a subcommittee including potential price rises and the future of cinemas.
The event was attended by representatives of more than 50 countries, the White House said.
UKRI boss Ian Chapman said it had been told by the government to “focus and do fewer things better”.
Commenters said Altman’s lengthy post shows “a nerve was well and truly hit” by Anthropic’s advert.
The price of the digital currency has dropped significantly despite President Donald Trump’s public support.