honest, when prices rose bitcoin, very difficult to produce 0.1 BTC per day, even with trading. many are trying to switch from trading, to gambling, but mostly it just makes them less BTC. the only way to produce 0.1 BTC every week is to have a long-term investment in altcoin, or try to trade with the more powerful.
Actually as of now it is very hard to get 0.1 because of the high price of Bitcoin but if you confident to get that you do this. In trading have possible to earn 0.1 per week how? If you big capital in trading for sure you earn like that or more. For example you have 10-20 Bitcoin in trading and you buy 10-20 altcoin and very week those altcoin pump so you have profit and your target price will get. Big capital the profits is high if you have small capital your profit also low .
If you have 10 or 20 bitcoins to invest in altcoins then your profit ratio would be more then 0.1 as its a huge amount to invest and even a small fluctuation can give you huge profits but in reality not all can afford to invest that huge amount in trading.