I feel as an outlier to this I need to make a comment.. Debugging (with source) to me at least, it’s so much more easier as you have all of the stack with you along the chain.. It’s very rare, not impossible though, to find crazy behavior during correct debugging.. This law is new to me though.
I think it depends on how thorny the thing you need to debug is. Race conditions, intermittent bugs that crash the process leaving no trace, etc. Debugging is much more than using a debugger