[phillipcarter]

You can sorta measure some of this with traces. For example, sampled traces that contain the sampling rate in their metadata let you re-weight counts, thus allowing you to accurately measure "number of requests to x". Similarly, a good sampling of network latency can absolutely be measured by trace data. Metrics will always have their place, though, for reasons you mention - measuring cpu utilization, # of objects in something etc. Logs vs. traces is more nuanced I think. A trace is nothing more than a collection of structured logs. I would wager that nearly all use cases for structured logging could be wholesale replaced by tracing. Security logging and big object logging is an exception, although that's also dependent on your vendor or backend.