The fundamental thing behind SPARC is (iiuc) to do this far faster by being drastically smaller. Iter was designed a long time ago based on materials available at the time. SPARC can be much smaller with much stronger magnets.
The argument from SPARC wasn't that iter was incompetent but that being so vast and expensive requires multiple nation states cooperating which is inherently slow. Slow things being more risks as thing a change too (9 years is probably 3 governments here). Making it smaller makes it cheaper, a d cheaper means a smaller collaboration (or single company).
The argument from SPARC wasn't that iter was incompetent but that being so vast and expensive requires multiple nation states cooperating which is inherently slow. Slow things being more risks as thing a change too (9 years is probably 3 governments here). Making it smaller makes it cheaper, a d cheaper means a smaller collaboration (or single company).