Except Watson was intended to be above average intelligence, but below Sherlock level intelligence, so he fails on the last account. He was very intelligent, just not as absurdly inelligent as Sherlock, so he appeared to be of average or lower intelligence.
Arguably Watson is an attempt at this.
Except Watson was intended to be above average intelligence, but below Sherlock level intelligence, so he fails on the last account. He was very intelligent, just not as absurdly inelligent as Sherlock, so he appeared to be of average or lower intelligence.