Why couldn't we have had these things for Lisp?* I mean, if 1/1000 of the intellectual horsepower that's been thrown at Java had been thrown at Lisp, we'd all be driving to work in orbit-capable flying cars that used a teaspoon of fuel per year.
* Of course Lisp invented the insanely great IDE around 1984 but then everybody forgot about it and had to rediscover the idea 30 years later.