Well a software is reflection of present working. Write any software, it remain that way if your business remain same for 100yrs. Which means if you don't grow,

Well a software is reflection of present working. Write any software, it remain that way if your business remain same for 100yrs. Which means if you don't grow, scale, and keep using 100yrs old tech and still survive in market. If not, than who will use it? You still can run PacMan on modern PC, and it is what 40+ yrs for pacman ? But how many plays it now? Software cannot and shouldn't be immortal. The always Evolve and adjust to environment. They don't remain constant.