In the not too distant past, most science was amature. Over the past 20 or so years, society has been making it harder for amatures to do real science despite the technical costs falling. With the recent upswing of the "maker movement", amature science has seen an increase as well, but is running into an assortment of legal issues.(An exception is astronomy, where amatures continue to play important roles. Of course, astronomy doesn't involve chemicals or other (currently) "scary stuff".)
Can amature science make a come-back? Or are the legal obsicles too entrenched?"