[steveklabnik]

One of the motivations for this change was that a real-world application was too slow. As the original presentation says, choosing a technology and then finding out that it's limiting you is really rough when it happens to you.

Performance _does_ enable certain kinds of applications, and it does absolutely matter, even on the desktop.

[ralmidani]

Performance matters, but if Ember can have 50-60% of the speed of a performance-optimized React app without the associated cognitive overhead, I suspect many will see the trade-off as worth it.

[rxcfc]

Agreed. And I suspect Ember can get closer than that, if not even outdo React in some cases.

[steveklabnik]

Agreed, for sure. I wasn't trying to make a framework-specific statement, just disagreeing with the notion that performance doesn't matter at all. It may only be for certain kinds of applications, but having more options is always good.