When a "bang" takes 30 years and costs 100 billion units of money, progress will be slow. "Something different" will have to be within the margin of error of all the successful "bangs". So this something won't likely be cheaper or faster. Physics is just at a state of sophistication where the scale of things to look at is so small or so vast that quick and cheap isn't possible anymore. At least for the last 100 years or so.
When a "bang" takes 30 years and costs 100 billion units of money, progress will be slow. "Something different" will have to be within the margin of error of all the successful "bangs". So this something won't likely be cheaper or faster. Physics is just at a state of sophistication where the scale of things to look at is so small or so vast that quick and cheap isn't possible anymore. At least for the last 100 years or so.