Something I learned regarding XP split

I didn't realize this (and apparently most people don't) but when XP is split (based on proximity), there's bonus XP awarded. I don't know the exact formula but when there's two people they each get 60% of the xp they would've gotten solo. Since this is "experience from the ether", it seems appropriate to maximize it making a dual lane pretty nice and also providing an incentive to "jungle tax" when your jungler ganks (for those not familiar, the "jungle tax" is the joking reference to when junglers will kill a wave of creeps after they scare off / kill an opponent).