...I've never really liked the Education sts (in Traveller or Call of Cthulhu). I always felt a character's education should be entirely represented by his skills.
I don't; I really like using Education as the "catch-all" what you should know, skill. How much "general knowledge" do you need toi quantify as a skill? Education is a good indicator of what a character should know instead of having to quantify a great deal of "stuff". This can be coupled with a "training skill" like "History eduction, occut education" etc. That way your Education score and skilsl combined can give you a synergy that builds on themselves....
I usually consider Education to represent theoretical knowledge, while skills represent more practical knowledge. So someone with, say, Edu 12 but no science skills probably knows quite a bit of the sciences in theory, but doesn't know a thing about working in a lab (or doing research or analyzing sensor data), while someone with, say, Edu 5 and Life Sciences (Chemistry) 3 is a very skilled lab technician who knows the various lab procedures very well, but has very little theoretical knowledge behind them - he's just the lab-tech, not the researcher.
A real scientist would have both a high Edu AND science skills.
Similarly, someone with a Medical skill but low Edu would be a med-tech, paramedic or nurse, while someone with both Medical and a high Edu would be a doctor.
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