Were the exact same servers reused? I once interviewed a Rails developer who was bragging about a Java-to-Ruby conversion he'd worked on. He was proud that the

Were the exact same servers reused? I once interviewed a Rails developer who was bragging about a Java-to-Ruby conversion he'd worked on. He was proud that they went from 50 servers running the Java system to only 30 for the Ruby one. Upon further questioning, he admitted that those 50 servers used by the Java system were from 2003, and the ones powering the Ruby-based system were from 2011! They didn't even halve the number of servers required, but the new servers were many, many times more powerful than the old ones.