Predictor

I said 20 year old - because I am one - although I agree that being interested in the subject intrigues the mind to find out more about it, if that's what you're getting at it.

And just realised you're Swedish so might be taking specialist subject to mean a subject on which one has an intricate/above average knowledge in the literal sense, it has a common parlance meaning of a subject that an individual will talk about at length because they have an interest in it, that interest doesn't necessarily need to be of a higher level than anyone else at the table - they just need to be louder/more vocal about the interest.

Ok, I understand what you mean now. My Swedishness can make it hard to follow certain discussions on here. For example, I often find myself struggle with deciphering Charon's use of language. No offence to him, but his Scotish 'dialect' confuses me a lot, hahah. Going back to Corrie, have you actually seen any of the many old seasons? I imagine it could take decades to catch up, if ever.