It is more realistic if someone that is a starter, to focus more on accumulating Bitcoin aggressively and continue to buy consistently instead of waiting for a dip. DCA method of investing in Bitcoin is more important and more realistic and it is more sustainable for someone that is a newbie, we know there are challenges and obstacle that might come our way during this process, that is why continuity and Consistency is important, Continuous accumulation to build our asset is more important than waiting for a dip to occur which we might not know when exactly a dip would occur.
And a newbie trying to start a bitcoin investment there is always difficulties having backup funds, it absolutely makes no sense for a newbie to hold on to cash instead of investing in Bitcoin using the DCA strategies on a weekly basis, there is absolutely no importance in building Backup funds before making investment, Buying aggressively and ruthlessness is the best strategy for a Beginner. This strategies helps us build our portfolio.
And to add a little observation to your point here where a newbie who just got started should buy ruthlessly and aggressively without also making plans for a back up funds or even an emergency funds, I think it’s not really advisable because a time will come when you will need funds for something else other than investing in bitcoin, at this point there’s every possibility that you’ll sell off when you’re not even supposed to just so you can be able to meet up and solve some issues unexpectedly, that’s why it’s advisable as an investor to make arrangements for your back up funds or emergency funds so you don’t have to tamper with your still growing investment. Buying aggressively is good as a newbie, but being too ruthless in it and forgetting to keep your emergency funds aside is not advisable.
I believe most of the things he says about that are literal meaning of what you interpreted. You know many newbies are not used to holding Bitcoin and when they they do, they are been scared of holding and when they see small red candles, they panic and sell immediately and by the time they check back, the market has reverse to it's trend again, I believe that's why he is saying newbies should buy, hold and develop strong mind to hold for long time.
There is nobody, I repeat, nobody bought Bitcoin recklessly, even if they do they usually do it with mind to hold for long term and there is nothing harmful holding Bitcoin for long time, many people that has done it has made the profit they never imagine and similarly even in the future, we will come back and discuss more this when Bitcoin does another all time high over and over again.
Anyone that has plan to hold Bitcoin aim and objectives should be picture on how many Bitcoin they want to see in their wallet in some years later, plan amount you want to use for DCA, it mustn't be done the way you plan it because finances and unexpected bills can squiz your plan but do just do it when you have the means to do it anyways, you will not regret holding.