An urban grid is an age old increment for building out cities. Multi-block scale projects like Dockside and Waterfront Square are only 20-30 year old urban technology and will be shortlived. Waterfront Square as a plan is 40% built, and may get to be 60% built with the present building under construction. It may never get past that point. In smaller increments developers would have phased infrastructure, built some rental, some for sale, some high, some low, always having an exit strategy to build something else different or the same on the next blocks as it evolves. The grid allows incremental development, much like the fabric of Old City and Rittenhouse Square and then multiple builders and architects can achieve some regularity of building frontage, size and shape. Despite their fears, the density with the grid in place will actually be much higher and easier to finance than the mega block some are lobbying for.