molecular energy gaps can be tuned across a huge window

An example of metaphor in explaining science:

"'Are we ever going to get there? I don't know – but I think that our work figuring out how to rationally tune the singlet-triplet and Homo-Lumo energy gaps allows you to begin to understand how to tailor the molecule for these applications,' Haley says. 'We've shown that we can tune the singlet triplet gap anywhere from 3.2-9.6kCal [13-40kJ], which is a huge window.'"

Chemistry World

Prof. Michael Haley, Richard M. & Patricia H. Noyes Professor, Dept. of Chemistry and Biochemistry, University of Oregon, reported in:

Mitchell Crow, J. (2024). Illuminating antiaromaticity. Chemistry World, 21(5), 42-47. https://www.chemistryworld.com/features/illuminating-antiaromaticity/4019362.article