Yeah exactly, my first thought is that a normal multicore PC is going to be not just more powerful, but more power efficient and cost efficient. It's a fun idea but I wouldn't be interested unless they publish some comparisons.
Basically everything here can be done on a single multicore computer (which is already a distributed system in many respects):
more powerful in most cases - yes. distributed - no.
learning about doing HA/Scale out via distributed systems is a really valuable skill, and projects like these make it sooo much more real, beyond even just basic networking.
Basically everything here can be done on a single multicore computer (which is already a distributed system in many respects):
https://turingpi.com/12-amazing-raspberry-pi-cluster-use-cas...