I've added a little motivation section on this :) The final goal is to index DNA, say a human genome, or a bunch of them, and this is static data. Then as new

I've added a little motivation section on this :) The final goal is to index DNA, say a human genome, or a bunch of them, and this is static data. Then as new DNA comes in (eg is read by a DNA sequencer) we can efficiently query against the index built on the reference genome, and this reference is often fixed.