The average user is on a 3-year-old Android phone with 40% battery. The average server has 32 processors and industrial-grade cooling. Sure, it is possible tha

The average user is on a 3-year-old Android phone with 40% battery. The average server has 32 processors and industrial-grade cooling. Sure, it is possible that your gaming PC beats the average server in terms of CPU frequency. But that's not what the average website visitor is using, and you can't scale the proof-of-work out of their reach.