Improved computer modeling and materials science (high-temp superconductors, better confinement vessels) are certainly helping us get closer to break-even fusio

Improved computer modeling and materials science (high-temp superconductors, better confinement vessels) are certainly helping us get closer to break-even fusion. Practical quantum-computing is being achieved, but wasn't even dreamed of until the 80s. Have we not advanced in our understanding and scientific capability since the 60s?