If you’re getting a sense of déjà vu from this blog post title it is probably because we’ve been here before e.g. in 2017, in 2016, in 2015, in 2014. These profitable ‘errors’ seem to keep occurring… Today, Elsevier sold me 48-hours of access to an article in the journal Computational Toxicology , with the title: “Ab initio chemical safety assessment: A workflow based on exposure considerations and non-animal methods”. The price?