Fermi Paradox. What am I missing?

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Note you ignored my cite too, which did show that:

3. Conclusion
   In summary, although the phase spaces of the system of distinguishable particles is different from that of indistinguishable one, their thermodynamics are in fact equivalent. It also implies that the corrected Boltzmann counting factor can be justified in classical statistical mechanics.

I can’t format the math on this board to show it, feel free to explain why you think my cite is wrong.