Could you please explain not just why you think reality is a simulation,
So the first part is that I think there could be billions of simulations in the future even though you think that is 100.000000000% impossible.
There would be a smaller number of realities that aren't simulated. So therefore it would be more likely that I exist in a simulation. Also my personal experiences make more sense in a simulation though they could be intended to seem like a coincidence. Note that also includes the new "6-7" word of the year and South Park episode.
but why you, and you alone, are conscious in it?
I think there could be billions of simulations that are similar to the Roy game or Alan Watts dream thought experiment scenarios. In both of those scenarios there is a single player and the other characters aren't conscious to save resources and minimise suffering. It's like how other characters in a dream are just simulated.
Can you provide evidence for this claim?
I can't even manage to convince you that there is even a 0.00000000000000000000001% chance that simulations are possible.