Even if all your databases are running at LUDICROUS SPEED thanks to SSDs, his argument is still irrelevant. That same LUDICROUS SPEED can be applied to technologies which can be used to mitigate the computational times of slower languages (e.g. caching)
Faster permanent storage will only help to close the ENROMOUS GAP between disk access latency, RAM access latency, and CPU cache access latency, which has continued to grow over time.
As Cliff Click said: RAM is the new disk. The real place languages like Ruby are suffering is through excessive object creation and mutation which blows the CPU cache. That would be a cogent argument. SSDs = LUDICROUS SPEED does not.
Faster permanent storage will only help to close the ENROMOUS GAP between disk access latency, RAM access latency, and CPU cache access latency, which has continued to grow over time.
As Cliff Click said: RAM is the new disk. The real place languages like Ruby are suffering is through excessive object creation and mutation which blows the CPU cache. That would be a cogent argument. SSDs = LUDICROUS SPEED does not.