It may only have had 128 Bytes of RAM, but it used 4K ROM cartridges, even more than that if the cartridge used bank switching. So Atari 2600 programmes had quite a bit more room to fit inside.
If you want to base your life around the results of single, small scale studies, that's your choice. But I've seen too many studies that seemed impressive, but when people set out to replicate the the study, they failed to get the same results. This is not rare, it happens frequently.