If confinement is easier in a large machine, why are not very large machines being built? Money and politics. You might want to take a look at the original log

If confinement is easier in a large machine, why are not very large machines being built? Money and politics. You might want to take a look at the original logo of the ITER project: https://www.iter.org/img/resize-900-90/www/content/com/Lists/Stories/Attachments/1328/logo.jpg https://www.iter.org/img/resize-900-90/www/content/com/Lists... The Soviet Union collapsed, and the US pulled out of the project in 2000, rejoining only in 2006. This necessitated a down-sizing of the original design.