
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
A fish farm raises fish, and in the first year, the growth rate of the fish's weight is 200%. It is expected that the growth rate in each subsequent year is 0.5 times the growth rate of the previous year.
1. After 5 years of breeding, how many times the original weight is the fish's weight expected to be?
2. If due to environmental pollution, the fish's weight decreases by 10% each year, after how many years does the total weight of the fish start to gradually decrease?

Present the answer in LaTex format: \boxed{Your answer}
user