> Edit: It's potentially productive if they open source some of their new stuff? I'm guessing the whole point is that the firm is developing its competitive edg

> Edit: It's potentially productive if they open source some of their new stuff? I'm guessing the whole point is that the firm is developing its competitive edge. In a way, it's even productive if the workers at Jane Street just get to do something they enjoy. But it's odd to judge a company by its by-products.