The trend is towards smaller lap tops anyway, regardless of developer age. But, carrying a heavy lap top in a backpack for long periods of time is not a good i

The trend is towards smaller lap tops anyway, regardless of developer age. But, carrying a heavy lap top in a backpack for long periods of time is not a good idea. A few years of this in my 40s led to shoulder tendonitis that still has me seeing a physio regularly. I carry it in a hand held brief case now. These North Face and Samsonite back packs designed for lap tops don't have the same supports that proper hiking backpacks have. You end up carrying all the weight on your shoulders instead of on your hips. Not a good idea!