> When they graphed loss against time, the pattern was really periodic over many days. The periodicity turned out to be 12 hours 25 minutes, which they eventual

> When they graphed loss against time, the pattern was really periodic over many days. The periodicity turned out to be 12 hours 25 minutes, which they eventually realized is exactly the time between low tides. I've set up a couple of monitoring systems at a couple of different companies and one thing I've heard some people saying is that they don't care about "fancy graphs", they just want a dashboard of what is red and what is green. This might be a manager vs engineer perspective, because for me the graphs are the main point: it allows me to spot - patterns (each night, each weekend, some weekends, more-or-less-randomly-except) - and also trends: at this speed we are going to reach 80% utilization before November.