I have been using computers for around 30 years. I started using my first laptop, a Toshiba 1100 in the latter part of the 1980’s. The laptop weighed around 5 kilos, plus a pile of floppy discs etc. Carried around the world, the machine seemed amazingly light at the time.Mindfulness and heedfulness contributes to reliable use of the laptops. I have only had one major crash that sent the laptop to laptop heaven. More than 20 years ago, I bought and used a cheap second hand laptop for some months before the motherboard blew up.