Except GPU cores are nothing like CPU cores, GPGPU was around 10 years ago, and whatever scala language/framework features he was shilling are probably useless for that kind of programming - so that's a failed prediction.
Intel tried with their Larrabee on what happens if they just toss in ton of traditional low performance CPU cores. It failed to perform. It's really hard to beat the modern SIMT style GPUs when it comes to massively parallel computation.