3 ms·

Time is pretty special. iOS alone is over a decade old and a constantly evolving target and it's itself a direct descendant of a 30+ year old system.

• Dylan16807 5y ago
  > a constantly evolving target That decreases the amount of code to replace, doesn't it?
  • pvg 5y ago
    How so? New not-in-safe-languages code is being added all the time.
    • Dylan16807 5y ago
      For code added in the future, you need devs no matter what language they use, so switching their language is the easy part of this large hard project. For code added in the past, more evolution means that for every X lines of code written, a smaller and smaller fraction of X still exists. Which means less work to replace the end product.