thanks for replying. to clarify, the statement isn't that it is straightforward -- simply that it's easier to analyze something that doesn't change shape unpre

thanks for replying. to clarify, the statement isn't that it is straightforward -- simply that it's easier to analyze something that doesn't change shape unpredictably than something that does (fewer variables to consider). whether predictions based on evolutionary related sequences are 100% accurate in human cells is another matter, especially when it comes to viruses.