Please take a look at the following: (from the Orion Magazine)
If possessing language is that which justifies our special status, then we must at least acknowledge it now looks likely that this wasn’t a Homo sapiens thing but a hominin thing.
I wonder what's the difference in tone and implication for the statement to use "must at least" or else "must" only?
If I understand correctly, "must" entail a sense of necessity, and "at least" means "at the minimum" which also suggests necessity. Does "must at least" basically mean the same as "must" and only differ in terms of the degree of emphasis?
Thank you very much for your help.