Uploaded June 2022 | Updated September 2026, 1 hour ago
Sherlock Holmes is famous for his deductions. But what if they're not deductions at all?
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00:00 Introduction
00:24 Deduction
00:57 Do deductions move from the general to the particular?
01:39 The key characteristic of deductions
02:21 Induction
02:45 Do inductions move from the particular to the general?
03:21 The key characteristic of inductions
04:26 A special kind of induction
05:35 Semantics?
Reference:
The best discussion of the distinction between the three kinds of reasoning I outlined here comes from "How We Reason" by Philip Johnson-Laird - cognitive scientist extraordinaire. Chapter 13 is on Sherlock and abductions. It's his model that I'm describing.
The clips are from the BBC series "Sherlock," starring Benedict Cumberbatch. Used here for educational purposes.
Sherlock Holmes is famous for his deductions. But what if they're not deductions at all?
Join my online learning community: benjaminkeep.com/community
00:00 Introduction
00:24 Deduction
00:57 Do deductions move from the general to the particular?
01:39 The key characteristic of deductions
02:21 Induction
02:45 Do inductions move from the particular to the general?
03:21 The key characteristic of inductions
04:26 A special kind of induction
05:35 Semantics?
Reference:
The best discussion of the distinction between the three kinds of reasoning I outlined here comes from "How We Reason" by Philip Johnson-Laird - cognitive scientist extraordinaire. Chapter 13 is on Sherlock and abductions. It's his model that I'm describing.
The clips are from the BBC series "Sherlock," starring Benedict Cumberbatch. Used here for educational purposes.
