As a general rule, what goes up can come down, and what goes up particularly quickly is privy to come down just as quickly. This is not to say that things will come down if they go up, but merely that they can, and certainly have before. This is particularly noteworthy today, with ethereum having seen some truly wild gains this year, all the way up from $7 back in December of last year to over $350 presently — a gain of 50X in just about half a year. Again, this isn’t to say ethereum will fall, but merely that it very well might, for any host of reasons, and it’s very important to keep this fact in mind and not overextend yourself with investments you perceive to be less volatile than they truly are. I’ll get back to this more later.
Understand why the dip happened. Did the dip occur due to some rumor that will likely have a temporary impact? Was the crypto overbought and now it needs some time to cool off? Did it just fail an all time high twice and now we are likely headed for a longer term correction? If you have this answer, then you can better gauge if you should be buying the dip. To this point, also keep an eye on the news. Bad news can cause a correction to deepen, good news could result in a quick turnaround (making it hard to get buy orders in if you are waiting for signs of recovery before buying).
Look at what the price has done over 1 hour, 24 hours, 1 week, 1 month, 3 months, 6 months, etc. and set limit orders just under highs and lows. For assets that are somewhat stagnant, this can net you solid buying and selling opportunities in the short term. This strategy essentially mimics fibonacci retracement levels, but requires none of the technical knowledge.
Hence, no rationally self-interested bitcoin miner would ever try to mount a 51% attack, as in all likelihood, they would lose massive amounts of money doing so and gain almost nothing from the effort. The only reason someone would want to conduct a 51% attack is to attempt to destroy faith in bitcoin — large governments, for instance, who might one day feel that their fiat currencies that presently provide them great value to them are becoming threatened by bitcoin. However, the likelihood even of these enormous entities to successfully conduct a 51% attack is already becoming vanishingly small, as mining power increases.
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