As the temperment of the fundraising market shifts, particularly in the later stages, the question of how much a startup should burn will become increasingly important. We're living in a historic period of very inexpensive venture capital. These cheap dollars have fueled spectacular companies with record-setting growth rates. In such an environment, growth at almost any cost is handsomely rewarded. But we're observing the ecosystem starting a correction - particularly in the late stage of the market. And so burn rates will matter more and efficient growth will be prized again. What does that mean for founders when planning their 2016 budgets?