4% rule of retirement oh 4% rule of retirement

Recently I do a lot of reading on retirement since market is so bad.

When there is nothing to do, do NOTHING.

I would like to share this 4% retirement withdrawal rule.

Assuming when you retired at 55 years old, your EPF account have 500k.

EPF: RM 500000
4% annually = RM 20 000 ( this is 4% rule, spend 4% from your saving)
Monthly = RM 1666.66
This 500k can last you until 25 years provided that you are cover with all your hospital bill.
“Rule of 25” – to support this 4% spending habit.
Question: CAN we survive with RM 1666.66 per month in 20 years later?
Assume
Housing Loan = finished
Car Loan = finished
Insurance = finished
Food = RM 30 per day per person ( 20 years later, now I can survive RM 10 per day) , 30*30= RM 900
Utility bill(Internet, Phone, Water, Electricity) = RM 300
Petrol = RM 200
Car maintenance, house maintenance, etc = RM 266.66

Can we SURVIVE???

Good source of retirement article:
http://financialmentor.com/category/retirement-planning/how-much-money-do-i-need-to-retire