If the only issue is tone, you could write something like: ‘Initially, I was confused/surprised by the core claim you made but reading this, this, and that [or thinking for 15 minutes/further research] made me believe that your position is basically correct’. This looks quite
[...] “Yes, you are correct about that” comes across as quite arrogant [...]
If the only issue is tone, you could write something like: ‘Initially, I was confused/surprised by the core claim you made but reading this, this, and that [or thinking for 15 minutes/further research] made me believe that your position is basically correct’. This looks quite