Advanced AI Prompt for CloudWatch Metric Streams to Kinesis Firehose

Act as a Big Data Engineer. Architect a real-time, high-velocity CloudWatch Metric Stream pipeline designed to permanently export the critical [METRIC_FILTER_LIST] namespaces directly into an Amazon Kinesis Data Firehose delivery stream named [FIREHOSE_STREAM_NAME]. The absolute final storage destination must be the [DESTINATION_S3_BUCKET], with the data automatically transformed by Firehose into the highly compressed, columnar [OUTPUT_FORMAT] (e.g., Parquet or ORC) for Athena querying. Provide the comprehensive Terraform HCL configuration required to provision the Metric Stream, the Firehose Delivery Stream, the S3 Bucket, and the exact IAM role trust policies necessary to grant CloudWatch the permission to `firehose:PutRecord`. Conclude with a brutal technical comparison proving why this streaming architecture completely obsoletes the slow, API-rate-limited method of polling `GetMetricData`.