Reports of a possible 'reverse brain-drain' from the US to France, has made me think again about science and its funding (https://www.theguardian.com/commentisfree/2025/mar/24/french-university-scientific-asylum-american-talent-brain-drain). Science, in its pure form (if there is such a thing), attempts to explain the world around us. It does this by looking at natural phenomena and considering what could underpin them. Science operates on the basis of potential tangible explanations, rather than on faith or superstition. It essentially asks 'If this is true, what would happen, if 'x' occurred/was applied?' It's the testing of hypotheses, to see which can be supported and which need to be dropped or modified. The nature of scientific relationships, means it deals with probabilities (rather than absolutes). Scientists are humans. As you might expect, there's been good science and poor science. Science generally costs money. Some science costs an awful lot of money. There's, consequently, little point in pretending that scientists are totally dispassionate, operating in 'ivory towers'. Some science gets supported by governments and/or commercial bodies. Other science can be easily unsupported, when it doesn't fit the aspirations of potential funders. Making science entirely dependent on pre-ordained views of non-scientists, however, has never worked out well. Look at the example of Trofim Lysenko. USSR government support (because it fitted their philosophies) for his epigenetics ideas, put back Soviet and Chinese agriculture for decades. Obviously, science and finance are linked but governments should be very wary (unless there are clear scientific or ethical reasons) of prescribing what research can and cannot be done. Scientists also have to be very clear, where the financial support for their studies comes from.