Is the inter-word space ` ` defined with with some minimum? I wanted to get something to show up with spacing, to chunk it, but allow for copying without spaces.
I wanted something more than a thinspace, so I used a kern- `{\kern0.199em}` and `{\kern0.200em} differ in length by 0.001em and in that the copying from the pdf with the latter results in `chunk1 chunk2 chunk3` whereas they're concatenated if you'd've used .199em
I wanted something more than a thinspace, so I used a kern- `{\kern0.199em}` and `{\kern0.200em} differ in length by 0.001em and in that the copying from the pdf with the latter results in `chunk1 chunk2 chunk3` whereas they're concatenated if you'd've used .199em