Gedolim Holding of Radzyner Techeiles

The most that can be hypothesized is that they were able to entertain such a possibility that chilazon can also include other marine creatures besides for a snail. It is guesswork to prove anything more than that.

The fact is we have Rishonim as well as Acharonim that have written on Chilazon being a snail, with the Raavya being the most explicit that it’s a purpura, which the Greeks have a long mesora to refer to the murex snail species. What the Gedolim taking on Radzyner Techeiles tells us is that they saw zero downside to wearing colored strings. This actually would be more of a support to taking on colored strings that we feel might be the correct Techeiles today.