It is quite valuable and relevant. Look at all the technology around you. All civilizations in truth are of 'science'. Everything around us is science. But very few people know that the foundation of all science is alchemy. In truth modern science is alchemy with the philosophical portion eliminated. The ancient alchemists may have been 'debunked' by Robert Boyle and company based on the 'inaccuracy' of their transmutation experimental instructions, but they came up with the most brilliant ideas and discoveries of all time. Just take a look at Isaac Newton.