Laptops are useless for mining, yes. You'd need to spend something like $1000 on electricity for every $1 of Bitcoins earned on a laptop. Not to mention machine wear and failure.
If you want to mine Bitcoins, you need a bunch of advantages. Special hardware, cheap space, low electricity cost, bulk manufacturing deals. Otherwise you probably aren't going to be breaking even, let alone profiting.
If you want to mine Bitcoins, you need a bunch of advantages. Special hardware, cheap space, low electricity cost, bulk manufacturing deals. Otherwise you probably aren't going to be breaking even, let alone profiting.