I was wondering about mining profitability and i think it's not worth it to get in. I mean you must get asic miners and the minimum to mine with is i think at least 10 TH/s. Even if you make enough money to pay electricity and still get some $ you have to get back the amount of the machines. I know there is cloud mining but that doesn't make that much and not stable. The blockchain is heavy and there are just too many people already mining who are your "concurrency".
So what do you think?

Loan amount 0.3 BTC
Term length: 30 days
Repayment amount: 0.5 btc
BTC address: 3Jqw5ot4T74LxZkvTc6RaBFPTjrZUnrfec
Thanks in advance!

I'm going to start trading with cryptocurrencies and I need some basic information. I know how trading works but I want to know how much BTC should I start with and how long time does it take to get profit.

It's real money but I think it's "weird" to think about that you can download a wallet (or make one online) find a faucet and thats it. Now you have 'real money'.

Once I tried to invest by lending BTC. It was not a bad idea but I had a small amount. So I invested with mybe 0.01 and it didn't quite get the same effect as I could get with 1 BTC