Yes, you can use any CPU. But it greatly favors larger CPUs, but you can use smaller ones if you set a very low frequency and just wait it out to minimize transaction fees.
One party had a huge CPU farm for cheap money, but they stopped mining (so they claim) once they reached 1% of the supply. Regardless, they are planning to hodl which is pretty big deal imo.
Thank you for your swift answer and for the articel.
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