https://ark-invest.com/articles/analyst-research/lithium/
"The shortage thesis typically includes an assumption that lithium reserves will stagnate at current levels while production rises to meet the demand for EVs. Even at todays lithium reserve levels, however, EV manufacturers could produce 45 million units annually for 78 years. That reserve-to-production ratio is higher than that in either copper or oil.[4] In fact, according to BP [BP], oil reserves never have topped 55 years of oil production.[5] Lithium is unlikely to drop to 55 years even under the massive acceleration in EV uptake that ARK anticipates."
As fast as technology has been improving things over the past few decades, I'm sure an alternative source, or a more efficient use of an existing source, will be found. Battery technology has been improved dramatically over the past decade. From everything that I read, I don't believe the improvements will slow down any time soon.
Again. I am not an expert. I'm simply a person who believes a positive opinion that involves a solution is far more productive than a negative one that simply criticizes. Not that I noted any criticism in this thread. My statement is an over-all view of collective opinion on various topics. The haters seem to always outnumber and overpower those with constructive opinions.