  function checkRewardUnderflow() public onlyActive {
    uint256 epoch = timekeeper.epoch();

    uint256 _activeEpoch = activeEpoch; // gas

    // Fill in gaps so we have a fresh foundation to calculate from
    _fillInEpochGaps(epoch);

    if (epoch > _activeEpoch) {
      for (uint256 i = _activeEpoch; i < epoch; ++i) {
        uint256 underflow = _getRewardUnderflow(i);

        if (underflow > 0) {
          uint256 balance = overflowPool.requestCapital(underflow);

          _sendToDistributor(balance, i);
        }
      }
    }
  }

  function fillInEpochGaps() external {
    uint256 epoch = timekeeper.epoch();

    _fillInEpochGaps(epoch);
  }
  function populateFromPreviousThrottle(address previousThrottle, uint256 epoch)
    external
    onlyRoleMalt(ADMIN_ROLE, "Only admin role")
  {
    RewardThrottle previous = RewardThrottle(previousThrottle);
    uint256 _activeEpoch = activeEpoch; // gas

    for (uint256 i = _activeEpoch; i < epoch; ++i) {
      (
        uint256 profit,
        uint256 rewarded,
        uint256 bondedValue,
        uint256 desiredAPR,
        uint256 epochsPerYear,
        uint256 cumulativeCashflowApr,
        uint256 cumulativeApr
      ) = previous.epochData(i);

      state[i].bondedValue = bondedValue;
      state[i].profit = profit;
      state[i].rewarded = rewarded;
      state[i].epochsPerYear = epochsPerYear;
      state[i].desiredAPR = desiredAPR;
      state[i].cumulativeCashflowApr = cumulativeCashflowApr;
      state[i].cumulativeApr = cumulativeApr;
    }

    activeEpoch = epoch;
  }
