That is not true either, investing in bitcoin is also profitable for even people with low capital and they can still be profitable, only it woudl take them longer to achieve that, a person can decide to use his 500$ monthly earning and invest in bitcoin with the DCA strategy allowing him to keep on buying bitcoin at intervals for a long period of time, the power of this is through consistency in accumulating bitcoin with little amounts untill your are able to aquire a huge stash of bitcoin and if the price of bitcoin increases exponentially within those years of your accumulation then your ealier coins would already be in profits. Long term investment is the best approach to bitcoin and I do prefer it ocer trading.