> ..I’d have to memorize two separate codes — one for the main entrance and another for my apartment door — which seems unlikely since I lost the ability to mem

> ..I’d have to memorize two separate codes — one for the main entrance and another for my apartment door — which seems unlikely since I lost the ability to memorize any seven-digit numbers when I bought my first cell phone 23 years ago. Since when this became an insurmountable task?