<assumption>If there are no fundamental laws constraining the existence of simulated consciousness</assumption>, I would throw in my lot in working towards developing an AGI.

Since there is infinite time to learn any skill and <assumption>it is possible to learn or invent whatever software or mathematical framework is required for such a goal</assumption>, I would get down to that, learning and creating various new forms of mathematical frameworks and required software tools.

<assumption>Engineers usually work best without another fellow human on the project</assumption>, so I will set up automation for tasks that do benefit from multiple minds on a project, in the form of low-level artificial intelligence that I have to work on as a prerequisite for the main goal.

Once the critical mass is hit where the code can keep self-improving and produce more iterations of itself that are better, I sit back and start with my long, long to-watch/to-read list and try to finish as much as I can before the AGI I created would <assumption>repurpose all of our mortal flesh for more efficient use.</assumption>

The only remnant of the existence of humanity will be the influence on the initial design of the code based sentience that exists now.
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Just kidding, <not-an-assumption>I'd probably procrastinate right until the heat death of the universe</not-an-assumption>