
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
Given that the sum of the first $n$ terms of the sequence ${a_n}$, denoted as $S_n$, satisfies the equation $S_n = a_{n+1} - a_1$, and $a_1 = 2$.

1. Find the general term formula for the sequence ${a_n}$.
2. Denote the sequence $b_n = \log_2{a_1} + \log_2{a_2} + ... + \log_2{a_n}$, find the sum of the first $n$ terms of the sequence ${\frac{1}{b_n}}$, denoted as $T_n$.

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