News Intel Looks to Immersion Cooling to Improve HPC Efficiency, Density

I am not a fan of immersion cooling. It's not new and diy folks have been doing it for ages....

The biggest problem would be cost. Non-conductive solvent is very expensive. It's also volatile (else it will be too messy). Then I am also not sure the dangers of breathing the vapor for prolong periods.

So, imho, liquid/air cooling hybrid is still more practical.