Very happy subscriber here, thank you for the tool. I do a lot of searching with it, however due to some changes in my life in the near future I will not need it as much so I wont be willing to spend $20 a month on it. So my question is, would you consider adding an option where one could pay per query rather than just per monthly subscription? I would love to use it for the occasional spark of curiosity when I want to know more about a certain topic without having to familiarise myself with the academic field surrounding it. Having a way for using undermind for situations like that would be truly amazing! Would gladly pay 1-2 or maybe even 3 dollars per extended query.