Do you remember floppy disks, size was 1.44 mb. I bought 1tb external hard disk two years ago, and now there is even bigger hard disks. So what we are talking about, digits goes up each year? And everything is happening very fast.
Welcome to technology era, new things are invented, old are upgraded, and upgrades are upgraded. Things will be alright, this will never happen, they are arguing now about block size, to increase it to 700 MB in 4 years is impossible. Where ever you read this guy who wrote it doesn't know nothing about bitcoins.