> No one time investment is needed if you want to learn J. I don't understand the "{J,K,Q} don't require you to learn new symbols" argument. You're learning a

> No one time investment is needed if you want to learn J. I don't understand the "{J,K,Q} don't require you to learn new symbols" argument. You're learning a mapping between symbols and functionality, not literally learning to recognize the lines and curves that make up the glyph. "reverse" is `|.` in J and `⌽` in APL. It doesn't seem obvious that the J mapping is easier just because I've seen those characters in other contexts. It does take a little work to learn where they live on the keyboard, but that doesn't seem like a huge barrier to overcome. The live editor on the BQN site shows a list of glyphs and hovering shows you where they are on the keyboard. You just prefix with `\` to type them, so you don't even need any custom keymap.