Instead of trying to "kill" the Bloomberg Terminal, it seems like a more rational choice, assuming success is the model we are trying to follow, would be to replicate it.
I love Bloomberg Terminal's "UI". Really, I think it is the Bloomberg keyboard that enables such hard-to-replace efficiency. Perhaps one can draw analogy to the APL keyboard. The keyboard is still the most efficient input device we have. That is, I think, what is so difficult to "kill". Keyboard-driven computer use still works more efficently than the alternatives.
Anyone who replies to this comment using a keyboard is proving this point.
Efficiency is only material in terms of something.
To provide a devils advocate to your last point, people could be most likely to respond on keyboards because a keyboard is an cost - efficient option for the majority of potential responders.
However there could be other tech that is more time - efficient. And for someone with an advanced condition such as ALS, it would be extremely inaccurate & inefficient in terms of either cost or time to use a keyboard for any sort of input where a high level of accuracy is required. Whereas a speech-to-text software connected microphone or some other system would be far more efficient in those categories for them.
All this to say that no, simply because one person replies to your post with a keyboard adds not one shred of validity to the vast over-generalization that "the keyboard is the most efficient input device we have".
I shall also now further assert to, in addition to disproving your central claim by counterexample, to have also disproved your ending statement (also by counterexample), by first, disproving your absurdly general central claim, and second, having done so using a keyboard as the input system for my response.
For a certain kind of user computer UI really peaked during the CLI age. Reading text and typing on a keyboard is the fastest way to get data into and out of computers.
I love Bloomberg Terminal's "UI". Really, I think it is the Bloomberg keyboard that enables such hard-to-replace efficiency. Perhaps one can draw analogy to the APL keyboard. The keyboard is still the most efficient input device we have. That is, I think, what is so difficult to "kill". Keyboard-driven computer use still works more efficently than the alternatives.
Anyone who replies to this comment using a keyboard is proving this point.