If it's interesting to you, go for it! You'll probably learn a ton more about anything if you're interested, even if it's not 100% relevant to your job, than y

If it's interesting to you, go for it! You'll probably learn a ton more about anything if you're interested, even if it's not 100% relevant to your job, than you would forcing yourself to learn something you feel certain would be relevant but isn't sparking your interest.