
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 a sequence ${a\_n}$ is $S\_n$, and $S\_n = -1 + 2a\_n$.
(I) Find the general term formula for ${a\_n}$;
(II) If $b\_n = \log\_2{a_{n+1}}$, and the sum of the first $n$ terms of the sequence ${b\_n}$ is $T\_n$, find $\frac{1}{T\_1} + \frac{1}{T\_2} + ... + \frac{1}{T\_n}$.

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