Better to use mining hardware if you want to mining btc, diff always increased.
If you want to mining with laptop try to mining altcoin.
even mining cpu only altcoin is not a good option, laptop are useless for this type of thing, i could only see it work if you decide to mine for a shor amount of time the initial block of a new coin and then shutdown and repeat, otherwise better to use it for browsing
I means try altcoin which low diff, and why not to use for practice
I personally not mining with laptop, but sometime mining with PC with fan
Yes better to use for browsing actually.
One reason is you can get a block erupter usb asic for less then 10 dollars. With it you can play/learn mining. And it won't break the bank.
Also it wont stress your CPU/GPU. I don't know how many here were doing lot's of GPU's a few years back, but if you push it to hard and it sends smoke up from a GPU, it is no fun. Sure you can do RMA on most companies, but you will be without it for a bit.