Comment by scottchin

One of the major challenges in creating a competitive FPGA architecture is tuning the architecture. Commercial vendors do this tuning through direct insight into their customer's designs. And since the vendors have a large portfolio of customer designs, they have a lot of data points to perform this tuning. That's one of the many reasons why we haven't seen a successful FPGA startup in a long time (decades probably). Kind of like a chicken and the egg problem.