Full Idea
A distinguishing mark of history is that the better you know a historical period, the harder it becomes to explain why things happened one way and not another.
Gist of Idea
The more you know about history, the harder it becomes to explain
Source
Yuval Noah Harari (Sapiens: brief history of humankind [2014], 13 'Hindsight')
Book Reference
Harari,Yuval Noah: 'Sapiens: a brief history of Humankind' [Vintage 2014], p.266
A Reaction
Presumaby that means it resembles statistics. Each individual reading is perplexing, but some patterns emerge on the large scale.