public function display($finish = false) {
		$msg = $this->_message;
		$idx = $this->_iteration++ % strlen($this->_chars);
		$char = $this->_chars[$idx];
		$speed = number_format(round($this->speed()));
		$elapsed = $this->formatTime($this->elapsed());

		Streams::out_padded($this->_format, compact('msg', 'char', 'elapsed', 'speed'));
	}