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by natoliniak 1375 days ago
having seen several rewrite attempts in my career, none of which were fully successful, here are some thoughts:

- The ultimate reason: it will take too long and be over budget. The business will (rightfully) ask why should they invest x amount of capital just to get essentially the same feature set back. Businesses do not care about whats under the hood.

And here is why: - the rewriter team usually does not fully understand edge/corner cases that the current mess handles, but obscures it.

- the rewrite inevitably ends up following the same patters that the original did leading to unusual/weird cases

- rewrite teams get too ambitious and attempt to over abstract and over engineer, eventually creating another mess understood by only them