If an experienced and disciplined trader had a liquidity crises due to say a legal or medical issue which wiped out his liquidity it could be done but the pressure would be high. For a beginner, it would be an extreme long shot but not impossible.
This - exactly.
To say more or less the same thing at much greater length (my
forte
), it's perhaps possible for someone who ...
(i) is already familiar with
all the details and practicalities of both risk-management generally and specifically trade-management s/he's going to need, and is in this sense more or less an expert to start with (that's a really tall order, because statistics and probability are counterintuitive subjects to most people, but it could be achieved by someone
with all the appropriate education in the first place, who then practices on demo for thousands of hours, before starting);
(ii) has a genuine, proven edge that lasts (this implies having all the skills to develop, identify and analyze it);
(iii) has real patience and discipline,
realistic expectations of what's achievable and over what time-scale, and few-to-no emotions around financial matters;
(iv) has enough to live on without withdrawing anything from the trading account until after it's built up
a lot; and ...
(v) has many years over which to achieve it.
But take away
any one of those five preconditions, and no: it's
almost certainly not going to be possible.