The context here is trading. Of course seconds do not occur randomly. Does that even need to be stated? Lets look at it in a different way. When the next tick will occur is unknown and so can be treated as a random event. It is very important to understand that the future rate of change is unknowable. Back testing will arrive at some sort of average, but that is not very helpful, all it will do is lengthen the time taken to empty your account.
Who really cares is true, it's not fun to debate on here anymore. At the same time people just seem to over complicate and add factors in and/or over state the intelligence level needed to consistently pull money out of the markets. I mean OK if you're trading tens of millions or hundred of million dollar portfolio and managing a hedge fund or something, than having deeper over all knowledge and adding complexity can obviously help due to taking a position can move the market. But for the average joe trading on here, my statement is correct. Anyone trading low to even medium sized volume, particularly on equity futures doesn't have to make things so complicated or need an IQ even above 100 to pull money out of the markets. You can still make incredibly money relative to other jobs, trading even 2-3 NQ contracts.

