1. It seems that all proprietary software companies are de-prioritising their desktop OSes, in terms of focus and resources. Microsoft is doing weird tablet hybridisation and Apple is just porting iOS junk back from the iPad.
This creates a vacuum, as there is no modern desktop UI. Nothing's been done since roughly OS X. It's been 18 years. More than my whole adult life.
2. There will be very little financial incentive to fill this vacuum. Desktop OS:es only sell to the enterprise, which has different requirements, and Microsoft has that market cornered anyway.
No-one who is making software purely for money would be able to do this. Well, we, the FLOSS community, aren't, and so we can.
3. In order to do this, we need to experiment. A lot. And most of these experiments will probably fail.
For that to happen, the cost of development in terms of time and cognitive load must go down. Much like Rust seems to have enabled a wave of new command-line tools that are faster and much less boring than the traditional Unix tools. Making a GUI app must be roughly as complicated as making a CLI app.
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