I'm reading The Fermented Man by Derek Dillinger. The author talks about how easy it is to ferment vegetables. You just need to cut the veggies and brine them. However, one day he discovered that Japanese people use rice bran to ferment vegetables. Then he says:
“For all my conviction that fermenting vegetables is one of the easiest things in the world, I had not accounted for the various ways other cultures have found to ferment something. It’s not always as easy as shredding and cubing and plopping into a jar.”
I’m confused about the sentence in bold. Firstly, it seems “conviction” has two basic definitions:
- an unshakable belief in something without need for proof or evidence
- The judgment of a jury or judge that a person is guilty of a crime as charged.
Secondly, “account for” can have many different meanings:
- To keep a record of how money has been spent
- To know or find out where something or someone is
- To explain or justify something
- To form some proportion or amount of a larger whole or group
Thirdly, “for all my” seems very simple and colloquial but also very vague to me.
Can anybody tell me which definitions fit the context? And as a whole, what does this sentence mean?