Comment by tonymet

Rails, PHP, django, and all rapid app development frameworks all made an important tradeoff between development time and system performance. Rails would struggle with more than a few dozen QPS. You might get 100, but not 10k, 100k or anything near the capability of the hardware (even 20 years ago)

That tradeoff is no longer necessary. There is little benefit to making such an expensive tradeoff, at a time when the hardware cost is skyrocketing.

Stop clinging to old tools as if they were a religion.

DHH may have chosen an unwelcome audience (at first) for that message, but what value is preaching to the choir? He has a long relationship with the Rails community, and it's an honest , timely and relevant message.