Getting a null result doesn't prove that the null hypothesis is true. It means that we can't say anything with confidence based on this experiment. There is a

Getting a null result doesn't prove that the null hypothesis is true. It means that we can't say anything with confidence based on this experiment. There is a huge difference between failing to make X work and proving that X doesn't work and I fear that if people start conflating the two then many potentially productive routes will abandoned far too early,