Artificial intelligent assistant

Boswell

Boswell
  (ˈbɒzwɛl)
  The name of James Boswell (see Boswellian a.), used allusively for: a constant companion or attendant who witnesses and records what a person does.

1858 O. W. Holmes Autocrat Breakf.-Table (sub-title), Every man his own Boswell. 1891 A. Conan Doyle Adv. Sherlock Holmes (1892) 6, ‘I think that I had better go, Holmes.’ ‘Not a bit, Doctor. Stay where you are. I am lost without my Boswell.’ 1932 N. Mitford Christmas Pudding iii. 41, I never thought of biography, but of course that's the very thing for me... May I be your Boswell, darling?

Oxford English Dictionary

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