In 2021, Lord John Bird introduced the Wellbeing of Future Generations Bill (‘the Bill’) in the United Kingdom’s House of Lords. While the Bill failed to proceed beyond its first reading at the House of Commons, it is likely to be reintroduced in the near future with amendments that take into account the academic and political debate it inspired. With the intention of contributing to that debate, this comment argues that the Bill fits into a growing trend in international law and other domestic jurisdictions to protect future generations through legal means. The Bill introduced concrete measures to mitigate risks to future generations and made some of its main obligations justiciable. However, the proposal falls short in at least two regards: (1) its framing of the ‘future generations principle’ is too abstract and simply reiterates the concept of sustainable development, and (2) it lacks precision regarding types of risks to future generations, especially with regards to existential risks. We conclude that the immense ethical importance of protecting the vast number of future people and the severity of some of the risks future and present generations face demands significant improvements to the Bill before it is reintroduced in Parliament.