Always claiming that the Mac Clone development in the past failed so no other partnerships in the future are possible is a depressingly circular and obtuse argument that only cuts off paths of growth rather than opening paths.
That may be true, but you would have a better case if you actually responded with evidence of why things would be different this time, not just asserting that it would be (mostly because either you thought of it, or you wish it to be so).
Sony was trying to make Windows computers Mac like and it didn't work...for obvious reasons. This would be different on so many levels.
No. Sony failed in the workstation space building Unix workstations at a time when there were many other successful workstation companies. Sony failed in the Windows PC space because they built more expensive systems that looked nice but did not work that well. What do they bring to the table? They have no corporate workstation sales organization, they have no track record of success in the computer market at any level. What would make this different? They never built high end X86_64 systems, just expensive machines that looked nice. They have not been in the workstation market since 1998 - a quarter of a century ago, meaning that they would have to build a completely new design organization to make such systems (even their former VAIO machines were not at the high end of the performance market, just at the high end of the price range for consumer focused machines). That would be a multi-year process. By the time they could enter the market, everyone would long since have either moved to Apple Silicon or Linux/Windows based x86_64 systems.
Nvidia was a primary OEM vendor for Apple for a SHORT period of time.
Apple typically alternated between nVidia and ATI (eventually bought by AMD), from as far back as the PowerPC days. It is a short time if you consider 23 years ago a short time.
AMD was a GPU vendor for Apple going all the way back to the PowerPC days and after Nvidia.
AMD acquired ATI in 2006. nVidia provided GeForce cards for the PowerMac G4 in 2001 (they have have gone back further, but I stopped looking).
Nvidia probably wasn't willing to just build the GPU on the motherboard and not get any credit like AMD did for YEARS.
You are just making things up at this point. Putting it in all upper caps does not make it any more true. Apple always talked about the graphics card and/or discrete chip provider.
I suspect Nvidia kept wanting Apple to seed basic OS functionality tasks to the GPU exclusively and make Apple more dependent on them, but frankly with the way MacOS is built Apple could have had it both ways where those operations only worked from 3D apps, but it still would have allowed actual customers to have Macs that weren't obsoleted in functionality months after release.
I think you are arguing that Apple should have seeded control of a critical piece of its operating system to a third party. Can you come up with any example where Apple has done that? Ever? By 3D apps do you mean any application that used 3D graphics like Final Cut, Motion, most games, chunks of the user interface,
etc. or just some subset of those.
Sony just wouldn't be nearly as territorial and would focus on satisfying the customer, blending what needed to be blended because that's the only way they would sell computers to a specific group of niches and half of the support would be coming from Apple.
You say this based on what example? Given that Sony failed building workstations and failed building expensive, design focused Windows computers, why would they succeed this time? What recent experience do they have selling to these niche markets? Would they be limited to these niches in some way? How would they promote their machines against Apple’s machines, without denigrating Apple’s systems? How would it be beneficial for Apple to be arguing that Apple Silicon is not good enough?
There is no part of your argument that is based on reality as it actually exists, rather than some fantasy world you want to will into existence.
If Apple feels this market is worth addressing, they will build Apple Silicon systems that address it. If they do not feel it is worth addressing, they are not going to dedicate engineers to continue to support it in a way that would muddy the message and force them to share deep internal secrets with a third party that brings nothing to the table.