People commonly say that exploratory testing “is a luxury” that “we do after we’ve finished our scripted testing”. Yet there is no scripted procedure for developing a script well. To develop a script, we must explore requirements, specifications, or interfaces. This requires us to investigate the product and the information available to us; to interpret them and to seek ambiguity, incompleteness, and inconsistency; to model the scope of the test space, the coverage, and our oracles; to conjecture, experiment, and make discoveries; and to perform testing and obtain feedback on how the scripts relate to the actual product, rather than the one imagined or described or modeled in an artifact; to observe and interpret and report the test results, and to feed them back into the process; and to do all of those things in loops and bursts of testing activity. All of these are exploratory activities. Scripted testing is preceded by and embedded in exploratory processes that are not luxuries, but essential.