Timeline of relative Google search interest for search terms related to specific preprint research articles. Dashed lines indicate date of preprint posting (red: \citet{ji_homologous_nodate}; blue: \citet{pradhan_uncanny_2020}). Search interest is scaled relative to the highest observed interest across all plotted search terms ([hiv+coronavirus], 1st February). Data obtained via Google Trends (https://www.google.com/trends).