Impact of quantum mechanics on physical science epistemology and science at all is considered. We consider methodolically idea that science doesn't research its assumed objects but the ability to research, thus making itself not distinguishable from the cognitive science in the most general sense. Next idea is that what we discover firstly are the methods and the technologies understanding about which may come (if at all) much much later after we have learned to use these technologies in our life up to incredible level. Instrumentality rather than objectivity should be researched in science. In this sense quantum mechanical impact on sciences should be assessed. Using this approach, quantum consciousness should be quested for.