Opinion of SETUN?
I assume you mean a 1960 ternary computer that I knew nothing about before duckduckgoing it :p I guess computers that aren't just binary (enby computers?) are an interesting experiment and might be much more powerful but it involves reinventing everything because nothing is designed for other bases-you can't have compilers, you can't have bitshifting operators directly, etc. If you're going down this route, how about an analog computer to just have theoretical infinite precision? No more IEEE 754 \o/