I’m gonna say if it were possible that a knife that never needed sharpening or the technology to develop it could be made we would have already seen it. Our expectations can sometimes exceed reality but I guess we can dream. Lol.
From my perspective I think we currently have some of the best steels ever produced that are specifically made for cutlery. In the past they used whatever tool steel was available or stainless or regular 1095. The list of steel that is used today is staggering and meet a range of performance for just about anything and also for specific purposes for industry as well. I also think the performance of these new steel are above what is necessary for what they are used for. My knife collection/ accumulation is much more than I ever imagined 20 years ago. I have 425m, 420hc, cpm 154, s30v, s35vn, s45vn, 20cv, magnacut and a slew of various others in various brands some unknown. I have a knife for just about any purpose I’ll come across so im not complaining any.