Comment Untrustful (Score 2) 89
Fusion energy has being clearly extremely complicated.
Steady self-heating plasma for long duration hasn't being achieved yet. And we aren't fully sure if self-heating plasma will have the exact same behavior than external heated plasma. After all, how the energy reach the plasma is important.
Also the tritium feeding problem is not solved neither mentioned.
As the condition hasn't being achieved, there is no real data about the fatigue of materials under neutron leaks that won't be stopped at the shielding and fuel feeding.
In summary, nobody can ensure it's gonna work based on "papers". On paper you can propose an experiment with multiple goals and you declare success if most goals are reached. You don't propose a full reactor over exotic yet to prove concept full of problems yet to be solved.
This is just an operation to capture funding.