The journal article is here (you might need to be a geologist to...

The journal article is here (you might need to be a geologist to understand it fully):

https://www.science.org/doi/10.1126/sciadv.adh8183

Neither LAC or JRL share prices have gone crazy so I'm thinking that the market doesn't think that much of this yet.

Note that they seem to report Li in ppm (JRL cutoff grade is 1,000 ppm or 0.1%), which is different to here where we use percentages of Li₂O, with a resource grade for pegmatite of about 1% Li₂O being the minimum required for an economic deposit.