sclokadj:
* Moved the first `%x[echo "$(date) | $(date +%N)` above the first `now = Time.now`, because I guess forking `date` is time expensive. That way now gets more accurate.
* Removed the `In seconds: #{now_ns.to_f / 1000000000}` part from the first `puts "Time now in nanoseconds: #{now_ns}"`, because it didn't look helpful in verbose log.
* Fixed the second `puts "Time now in nanoseconds: #{now_ns_after}"` by setting `now = Time.now` again. Before this change, first `Time now in nanoseconds:` equaled second `Time now in nanoseconds:`.
* Added `Diff nanoseconds` to see how much has actually changed.