On "all 2^39 patterns" — any explicit file is infeasible (minimum ~2.75 TB). The correct answer is: the pattern space is [0, 2^39). A stream_all_patterns() generator is included that yields every pattern on-demand with zero memory overhead — decode pattern k directly from integer k without storing anything.

**In short**: use `TopoDevPOC_n39.py` if you dont want unnessesary file saved on your disk. And use `TopoDevPOC_n39_save.py` if you want to store every pattern on to CSV format with a total of 2.75 TB file. 

**Tip**: there is no need to store 549755813888 patterns externally since it can be generated on-demand using the generator function.