Prices are To hight (in relative terms)

[Leowilde]

Would've been great if the RNG for once could flip sides, and everyone won the jumbo. Tortoises everywhere!

[Nyalia]

the way it is worded in the introduction of the jumbo cackpot, makes it sound as if once the numbers are announced the first one with a full matching numbers win the jackpot while those who are later to it will only get a smaller...

There is no indication of this in game, at all, anywhere. I really think you just made that up... From the patch notes (emphasis mine):

When the winning number is drawn, in order from the last digit to the first, the more matching numbers you have, the greater the prize you’ll receive. After the drawing, you will have one week (Earth time) to claim your prize. After this one-week period ends, you will be unable to claim MGP or prizes. In addition to your other winnings, you will receive the Early Bird Bonus if you claim your prize within one hour (Earth time) of the Jumbo Cactpot drawing.

The odds for the cactpot are crazy good, btw. Expected return value on a ticket is a fair bit more than the price of the ticket. I forget the current specific numbers though so I can't calculate it, but will later.

[DracotheDragon]

snip

dialogue from the Hitting the Cactpot quest

If all your numbers match, then ding, ding, ding─you've hit the Cactpot! You'll receive an embarrassingly large number of MGP, and an extravagant prize besides!
And with the Jumbo Cactpot, the more participants there are, the grander the prizes become. Just imagine how many MGP you'll stand to win if all your friends and allies join in the fun!
When the time comes to draw the winning number, look no further than the lovely Cactpot cashier. She will provide you with everything from first prize to consolation points.

additional

In addition to your other winnings, you will receive the Early Bird Bonus if you claim your prize within one hour (Earth time) of the Jumbo Cactpot drawing.

(we do not know what this bonus for being the first within the hour of the draw.)

bolded the parts that can be taken as first come first rewarded. The idea of a first place prize loses its meaning when multiple people strike the same part, a tie in the chocobo races has both players in 1st gain the same experience and MGP as the 2nd place, meaning in truth there is no first person.
thus the same could be said that they will follow the FFXI approch and split the winnings, with each and every winner, not only this but in ffxi if someone claimed the pot and the other person was not on the rest of the time limit ( i think it was only a 2 hour collection time from the first person) then they lose out while the first person gains the remaining pot.

not stating the odds are not good 1 out of 10.000 is really good for a game with 4 million active users, but it is how they handle this that is worrysome,

also i do like the full refund if you lose, that is kind of SE,
again i aint arugeing the jumbo cackpot is a impossible chance, it is just a variable that is very anomalus and it is more likely to be lost then gained.the original wall of math was made ignoring this mostly due to the small chance of winning, compared to how they hand out the prizes.

[Nyalia]

I... I really don't understand you. The patch notes and the ingame text both say that if all your numbers match, you win 1st prize. If the last three match, you get 2nd prize, if the last two match you get 3rd, and if the last number matches, you get the 4th prize. If none match, you get the consolation prize. Then, if you turn in your ticket within an hour of the drawing, you get a bonus (which I believe is specified on the ticket?).

None of this has anything to do with any other players. None of it. If you match all the numbers, you win big! If everyone matches all the numbers, everyone wins! Millions of MGP for all! If you get there within an hour, you get more! If everyone gets there within an hour, everyone wins more! And then the instance crashes. Whee!

This is consistent with all other content in this game. Mining a node before another person does not affect their chance to gather from that node. Everyone can get full credit on a hunt, and everyone has the same chance to obtain mark logs no matter how many people are participating, or are in your party. Killing Ultros in Dragon's Neck can drop the Terra card for the entire party. All four people can get a dungeon atma after a run.

Please stop making things up and then stating them as if they were true. It's confusing, misleading, and starts rumors. That's really not okay.

[Niwashi]

bolded the parts that can be taken as first come first rewarded. The idea of a first place prize loses its meaning when multiple people strike the same part

If you think that just the fact of naming it "first prize" means there's only one, then the same would hold true of "second prize", "third prize", and "fourth prize". Yet the game explicitly describes the conditions for each one, and those conditions don't involve the luck of other players. There may or may not be multiple players who get all four numbers right, but there's certain to be lots who get just the last number right. Do you think that that fourth prize gets divided between all of them? Or that only one of them gets anything?

a tie in the chocobo races has both players in 1st gain the same experience and MGP as the 2nd place, meaning in truth there is no first person.

The chocobo race is different, because it is a race. That's the nature of races, that your result is measured in terms of how you place among the other contestants. So that has the concept of a tie, and therefore SE has to come up with a way of scoring ties.

In jumbo cactpot, the score is how many of the four numbers you get right. Other contestants don't affect your score because other contestants don't affect how many of the four numbers you get right.

[DracotheDragon]

Then allow me to rephrase and repeat something i have already said.

The wall of math and the math is done to see how one would reach 1 million by doing a sole activaty dose not include anomalus readings such as the jumbo cactpot (due to if SE will follow what they did in ffxi which is split the pot per winner, or give everyone a full prize) or Triple Triad Tournaments (we currently do not know the consistency of these tournaments)

this wall of math was done looking at each GATE and Triple triad, as well as some chocobo racing.

until the jumbo cactpot is done on Sunday 2am GMT, and we see how the results are played out, then if it is a stable everyone gets the 1+million i will place it in the wall of math at the bottom with its chances of winning (1 in 10,000 or 0.001%)

the wall of math will be updated with how long you will take if you manage to squeeze everything in, i am still putting the numbers togeaver and taking note of time in-between each GATE.